Use After Free Affecting kernel package, versions <0:4.14.309-231.529.amzn2
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-AMZN2-KERNEL-5789103
- published 20 Jul 2023
- disclosed 22 Mar 2023
Introduced: 22 Mar 2023
CVE-2023-1281 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.309-231.529.amzn2 or higher.
This issue was patched in ALAS2-2023-1987.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1281
- http://www.openwall.com/lists/oss-security/2023/04/11/3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2
- https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://security.netapp.com/advisory/ntap-20230427-0004/