CVE-2023-1281
Last modified
CVE-2023-1281 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 4.14, < 5.10.169 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.95 | — |
| Linux | Linux Kernel | >= 5.16, < 6.1.13 | — |
| Linux | Linux Kernel | 6.2 | Rc1 |
References
- https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230427-0004/Third Party Advisory
- https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230427-0004/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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