Fix potential out of bounds write (CWE-787) when processing LLMNR or mDNS queries #1259
Conversation
This file contains hidden or 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
…#1147) * CBMC: replace any missing functions by assert-false --------- Co-authored-by: ActoryOu <[email protected]>
* Adjust proof tooling to support CBMC v6 With CBMC v6, unwinding assertions as well as other checks are enabled by default. * Fix CBMC issues * Fix spelling & formatting * Fix build-check * Add unit test cases for FreeRTOS_multiply_int32 and FreeRTOS_add_int32 * Tony's comment * Bump CBMC version to very latest release * Replace Synopsys link with blackduck one to solve link error. * Move the comment to the right place --------- Co-authored-by: Tony Josi <[email protected]> Co-authored-by: ActoryOu <[email protected]> Co-authored-by: ActoryOu <[email protected]>
tony-josi-aws
force-pushed
the
v4.2.2_fork
branch
from
46a5fa4 to
ef82823
Compare
* Add Network Down event in EMACHandler Task
aggarg
approved these changes
Jun 4, 2025
ActoryOu
approved these changes
Jun 4, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
5 participants
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Outdated suggestions cannot be applied.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.
Description
This change addresses a potential out-of-bounds write when processing LLMNR or mDNS queries with very long DNS names. This issue only affects systems using Buffer Allocation Scheme 1 with LLMNR or mDNS enabled.
We would like to thank Paschal Amusuo (@AmPaschal), James C Davis (@davisjam), Taylor Le Lievre (@tlelievre26), and Aravind Kumar Machiry (@Machiry) of Purdue University for collaborating on this issue through the coordinated vulnerability disclosure process.
Test Steps
Checklist:
Related Issue
By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.