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In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
Issue summary: The POLY1305 MAC (message authentication code) implementation
contains a bug that might corrupt the internal state of applications on the
Windows 64 platform when running on newer X86_64 processors supporting the
AVX512-IFMA instructions.
Impact summary: If in an application that uses the OpenSSL library an attacker
can influence whether the POLY1305 MAC algorithm is used, the application
state might be corrupted with various application dependent consequences.
The POLY1305 MAC (message authentication code) implementation in OpenSSL does
not save the contents of non-volatile XMM registers on Windows 64 platform
when calculating the MAC of data larger than 64 bytes. Before returning to
the caller all the XMM registers are set to zero rather than restoring their
previous content. The vulnerable code is used only on newer x86_64 processors
supporting the AVX512-IFMA instructions.
The consequences of this kind of internal application state corruption can
be various - from no consequences, if the calling application does not
depend on the contents of non-volatile XMM registers at all, to the worst
consequences, where the attacker could get complete control of the application
process. However given the contents of the registers are just zeroized so
the attacker cannot put arbitrary values inside, the most likely consequence,
if any, would be an incorrect result of some application dependent
calculations or a crash leading to a denial of service.
The POLY1305 MAC algorithm is most frequently used as part of the
CHACHA20-POLY1305 AEAD (authenticated encryption with associated data)
algorithm. The most common usage of this AEAD cipher is with TLS protocol
versions 1.2 and 1.3 and a malicious client can influence whether this AEAD
cipher is used by the server. This implies that server applications using
OpenSSL can be potentially impacted. However we are currently not aware of
any concrete application that would be affected by this issue therefore we
consider this a Low severity security issue.
As a workaround the AVX512-IFMA instructions support can be disabled at
runtime by setting the environment variable OPENSSL_ia32cap:
A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.
There is a type confusion vulnerability relating to X.400 address processing
inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but
the public structure definition for GENERAL_NAME incorrectly specified the type
of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by
the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an
ASN1_STRING.
When CRL checking is enabled (i.e. the application sets the
X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass
arbitrary pointers to a memcmp call, enabling them to read memory contents or
enact a denial of service. In most cases, the attack requires the attacker to
provide both the certificate chain and CRL, neither of which need to have a
valid signature. If the attacker only controls one of these inputs, the other
input must already contain an X.400 address as a CRL distribution point, which
is uncommon. As such, this vulnerability is most likely to only affect
applications which have implemented their own functionality for retrieving CRLs
over a network.
Issue summary: Processing some specially crafted ASN.1 object identifiers or
data containing them may be very slow.
Impact summary: Applications that use OBJ_obj2txt() directly, or use any of
the OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message
size limit may experience notable to very long delays when processing those
messages, which may lead to a Denial of Service.
An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers -
most of which have no size limit. OBJ_obj2txt() may be used to translate
an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSL
type ASN1_OBJECT) to its canonical numeric text form, which are the
sub-identifiers of the OBJECT IDENTIFIER in decimal form, separated by
periods.
When one of the sub-identifiers in the OBJECT IDENTIFIER is very large
(these are sizes that are seen as absurdly large, taking up tens or hundreds
of KiBs), the translation to a decimal number in text may take a very long
time. The time complexity is O(n^2) with 'n' being the size of the
sub-identifiers in bytes (*).
With OpenSSL 3.0, support to fetch cryptographic algorithms using names /
identifiers in string form was introduced. This includes using OBJECT
IDENTIFIERs in canonical numeric text form as identifiers for fetching
algorithms.
Such OBJECT IDENTIFIERs may be received through the ASN.1 structure
AlgorithmIdentifier, which is commonly used in multiple protocols to specify
what cryptographic algorithm should be used to sign or verify, encrypt or
decrypt, or digest passed data.
Applications that call OBJ_obj2txt() directly with untrusted data are
affected, with any version of OpenSSL. If the use is for the mere purpose
of display, the severity is considered low.
In OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME,
CMS, CMP/CRMF or TS. It also impacts anything that processes X.509
certificates, including simple things like verifying its signature.
The impact on TLS is relatively low, because all versions of OpenSSL have a
100KiB limit on the peer's certificate chain. Additionally, this only
impacts clients, or servers that have explicitly enabled client
authentication.
In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects,
such as X.509 certificates. This is assumed to not happen in such a way
that it would cause a Denial of Service, so these versions are considered
not affected by this issue in such a way that it would be cause for concern,
and the severity is therefore considered low.
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling load_pem_pkcs7_certificates or load_der_pkcs7_certificates could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6.
Issue summary: Checking excessively long DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_check(), DH_check_ex()
or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long
delays. Where the key or parameters that are being checked have been obtained
from an untrusted source this may lead to a Denial of Service.
The function DH_check() performs various checks on DH parameters. One of those
checks confirms that the modulus ('p' parameter) is not too large. Trying to use
a very large modulus is slow and OpenSSL will not normally use a modulus which
is over 10,000 bits in length.
However the DH_check() function checks numerous aspects of the key or parameters
that have been supplied. Some of those checks use the supplied modulus value
even if it has already been found to be too large.
An application that calls DH_check() and supplies a key or parameters obtained
from an untrusted source could be vulernable to a Denial of Service attack.
The function DH_check() is itself called by a number of other OpenSSL functions.
An application calling any of those other functions may similarly be affected.
The other functions affected by this are DH_check_ex() and
EVP_PKEY_param_check().
Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications
when using the '-check' option.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions Cipher.update_into would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as bytes) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since update_into was originally introduced in cryptography 1.8.
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2020-36242
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
Publish Date: 2021-02-07
URL: CVE-2020-36242
CVSS 3 Score Details (9.1)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Release Date: 2021-02-07
Fix Resolution: 3.3.2
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CVE-2023-4807
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
Issue summary: The POLY1305 MAC (message authentication code) implementation
contains a bug that might corrupt the internal state of applications on the
Windows 64 platform when running on newer X86_64 processors supporting the
AVX512-IFMA instructions.
Impact summary: If in an application that uses the OpenSSL library an attacker
can influence whether the POLY1305 MAC algorithm is used, the application
state might be corrupted with various application dependent consequences.
The POLY1305 MAC (message authentication code) implementation in OpenSSL does
not save the contents of non-volatile XMM registers on Windows 64 platform
when calculating the MAC of data larger than 64 bytes. Before returning to
the caller all the XMM registers are set to zero rather than restoring their
previous content. The vulnerable code is used only on newer x86_64 processors
supporting the AVX512-IFMA instructions.
The consequences of this kind of internal application state corruption can
be various - from no consequences, if the calling application does not
depend on the contents of non-volatile XMM registers at all, to the worst
consequences, where the attacker could get complete control of the application
process. However given the contents of the registers are just zeroized so
the attacker cannot put arbitrary values inside, the most likely consequence,
if any, would be an incorrect result of some application dependent
calculations or a crash leading to a denial of service.
The POLY1305 MAC algorithm is most frequently used as part of the
CHACHA20-POLY1305 AEAD (authenticated encryption with associated data)
algorithm. The most common usage of this AEAD cipher is with TLS protocol
versions 1.2 and 1.3 and a malicious client can influence whether this AEAD
cipher is used by the server. This implies that server applications using
OpenSSL can be potentially impacted. However we are currently not aware of
any concrete application that would be affected by this issue therefore we
consider this a Low severity security issue.
As a workaround the AVX512-IFMA instructions support can be disabled at
runtime by setting the environment variable OPENSSL_ia32cap:
OPENSSL_ia32cap=:~0x200000
The FIPS provider is not affected by this issue.
Publish Date: 2023-09-08
URL: CVE-2023-4807
CVSS 3 Score Details (7.8)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://www.openssl.org/news/vulnerabilities.html
Release Date: 2023-09-08
Fix Resolution: openssl-3.0.11,openssl-3.1.3,OpenSSL_1_1_1w, cryptography - 41.0.4
Step up your Open Source Security Game with Mend here
CVE-2023-50782
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.
Publish Date: 2024-02-05
URL: CVE-2023-50782
CVSS 3 Score Details (7.5)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: GHSA-3ww4-gg4f-jr7f
Release Date: 2024-02-05
Fix Resolution: 42.0.0
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CVE-2023-38325
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
The cryptography package before 41.0.2 for Python mishandles SSH certificates that have critical options.
Publish Date: 2023-07-14
URL: CVE-2023-38325
CVSS 3 Score Details (7.5)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-38325
Release Date: 2023-07-14
Fix Resolution: 41.0.2
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CVE-2023-0286
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
There is a type confusion vulnerability relating to X.400 address processing
inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but
the public structure definition for GENERAL_NAME incorrectly specified the type
of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by
the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an
ASN1_STRING.
When CRL checking is enabled (i.e. the application sets the
X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass
arbitrary pointers to a memcmp call, enabling them to read memory contents or
enact a denial of service. In most cases, the attack requires the attacker to
provide both the certificate chain and CRL, neither of which need to have a
valid signature. If the attacker only controls one of these inputs, the other
input must already contain an X.400 address as a CRL distribution point, which
is uncommon. As such, this vulnerability is most likely to only affect
applications which have implemented their own functionality for retrieving CRLs
over a network.
Publish Date: 2023-02-08
URL: CVE-2023-0286
CVSS 3 Score Details (7.4)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: GHSA-x4qr-2fvf-3mr5
Release Date: 2023-02-08
Fix Resolution: openssl-3.0.8;cryptography - 39.0.1;openssl-src - 111.25.0+1.1.1t,300.0.12+3.0.8
Step up your Open Source Security Game with Mend here
CVE-2023-2650
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
Issue summary: Processing some specially crafted ASN.1 object identifiers or
data containing them may be very slow.
Impact summary: Applications that use OBJ_obj2txt() directly, or use any of
the OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message
size limit may experience notable to very long delays when processing those
messages, which may lead to a Denial of Service.
An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers -
most of which have no size limit. OBJ_obj2txt() may be used to translate
an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSL
type ASN1_OBJECT) to its canonical numeric text form, which are the
sub-identifiers of the OBJECT IDENTIFIER in decimal form, separated by
periods.
When one of the sub-identifiers in the OBJECT IDENTIFIER is very large
(these are sizes that are seen as absurdly large, taking up tens or hundreds
of KiBs), the translation to a decimal number in text may take a very long
time. The time complexity is O(n^2) with 'n' being the size of the
sub-identifiers in bytes (*).
With OpenSSL 3.0, support to fetch cryptographic algorithms using names /
identifiers in string form was introduced. This includes using OBJECT
IDENTIFIERs in canonical numeric text form as identifiers for fetching
algorithms.
Such OBJECT IDENTIFIERs may be received through the ASN.1 structure
AlgorithmIdentifier, which is commonly used in multiple protocols to specify
what cryptographic algorithm should be used to sign or verify, encrypt or
decrypt, or digest passed data.
Applications that call OBJ_obj2txt() directly with untrusted data are
affected, with any version of OpenSSL. If the use is for the mere purpose
of display, the severity is considered low.
In OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME,
CMS, CMP/CRMF or TS. It also impacts anything that processes X.509
certificates, including simple things like verifying its signature.
The impact on TLS is relatively low, because all versions of OpenSSL have a
100KiB limit on the peer's certificate chain. Additionally, this only
impacts clients, or servers that have explicitly enabled client
authentication.
In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects,
such as X.509 certificates. This is assumed to not happen in such a way
that it would cause a Denial of Service, so these versions are considered
not affected by this issue in such a way that it would be cause for concern,
and the severity is therefore considered low.
Publish Date: 2023-05-30
URL: CVE-2023-2650
CVSS 3 Score Details (6.5)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://www.openssl.org/news/vulnerabilities.html
Release Date: 2023-05-30
Fix Resolution: OpenSSL_1_1_1u,openssl-3.0.9,openssl-3.1.1, cryptography - 41.0.0
Step up your Open Source Security Game with Mend here
CVE-2023-49083
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling
load_pem_pkcs7_certificates
orload_der_pkcs7_certificates
could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6.Publish Date: 2023-11-29
URL: CVE-2023-49083
CVSS 3 Score Details (5.9)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-49083
Release Date: 2023-11-29
Fix Resolution: 41.0.6
Step up your Open Source Security Game with Mend here
CVE-2023-3446
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
Issue summary: Checking excessively long DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_check(), DH_check_ex()
or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long
delays. Where the key or parameters that are being checked have been obtained
from an untrusted source this may lead to a Denial of Service.
The function DH_check() performs various checks on DH parameters. One of those
checks confirms that the modulus ('p' parameter) is not too large. Trying to use
a very large modulus is slow and OpenSSL will not normally use a modulus which
is over 10,000 bits in length.
However the DH_check() function checks numerous aspects of the key or parameters
that have been supplied. Some of those checks use the supplied modulus value
even if it has already been found to be too large.
An application that calls DH_check() and supplies a key or parameters obtained
from an untrusted source could be vulernable to a Denial of Service attack.
The function DH_check() is itself called by a number of other OpenSSL functions.
An application calling any of those other functions may similarly be affected.
The other functions affected by this are DH_check_ex() and
EVP_PKEY_param_check().
Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications
when using the '-check' option.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
Publish Date: 2023-07-19
URL: CVE-2023-3446
CVSS 3 Score Details (5.3)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://www.openssl.org/news/secadv/20230714.txt
Release Date: 2023-07-19
Fix Resolution: openssl-3.0.10,openssl-3.1.2, cryptography - 41.0.3
Step up your Open Source Security Game with Mend here
CVE-2023-23931
Vulnerable Library - cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/4c/a2/6565c5271a79e3c96d7a079053b4d8408a740d4bf365f0f5f244a807bd09/cryptography-3.2.1-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /embedding/requirements.txt
Path to vulnerable library: /embedding/requirements.txt
Dependency Hierarchy:
Found in HEAD commit: f548525baaf6d16b6a6edc667027ce1b0516e50f
Found in base branch: main
Vulnerability Details
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions
Cipher.update_into
would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such asbytes
) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present sinceupdate_into
was originally introduced in cryptography 1.8.Publish Date: 2023-02-07
URL: CVE-2023-23931
CVSS 3 Score Details (4.8)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-23931
Release Date: 2023-02-07
Fix Resolution: 39.0.1
Step up your Open Source Security Game with Mend here
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