[8.2] - Add fix for CVE-2025-26465 #6
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
Scratch Build: https://koji.xcp-ng.org/taskinfo?taskID=77229 |
tescande
reviewed
Mar 3, 2025
LucienLassalle
force-pushed
the
8.2-CVE-2025-26465
branch
from
dfcafa5 to
a12ade3
Compare
A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles err codes in specific conditions when verifying the host key. For an attack to be considered successful, attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high. In the patch: - Added error codes Signed-off-by: Lucas RAVAGNIER <[email protected]>
LucienLassalle
force-pushed
the
8.2-CVE-2025-26465
branch
from
a12ade3 to
3e08d4e
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server.
This issue occurs due to how OpenSSH mishandles err codes in specific conditions when verifying the host key.
For an attack to be considered successful, attacker needs to manage to exhaust the client's memory resource first,
turning the attack complexity high.
In the patch: