Out-of-Bounds Affecting kernel-tools-devel package, versions <0:4.14.322-244.536.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNELTOOLSDEVEL-5847904
- published 22 Aug 2023
- disclosed 22 Sep 2023
Introduced: 22 Aug 2023
CVE-2023-34319 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel-tools-devel to version 0:4.14.322-244.536.amzn2 or higher.
This issue was patched in ALAS2-2023-2206.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools-devel package and not the kernel-tools-devel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
The fix for XSA-423 added logic to Linux'es netback driver to deal with a frontend splitting a packet in a way such that not all of the headers would come in one piece. Unfortunately the logic introduced there didn't account for the extreme case of the entire packet being split into as many pieces as permitted by the protocol, yet still being smaller than the area that's specially dealt with to keep all (possible) headers together. Such an unusual packet would therefore trigger a buffer overrun in the driver.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34319
- https://xenbits.xenproject.org/xsa/advisory-438.html
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://xenbits.xenproject.org/xsa/advisory-432.html
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://security.netapp.com/advisory/ntap-20240202-0001/