Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mlx5: fix possible ptp queue fifo use-after-free Fifo indexes are not checked during pop operations and it leads to potential use-after-free when poping from empty queue. Such case was possible during re-sync action. WARN_ON_ONCE covers future cases. There were out-of-order cqe spotted which lead to drain of the queue and use-after-free because of lack of fifo pointers check. Special check and counter are added to avoid resync operation if SKB could not exist in the fifo because of OOO cqe (skb_id must be between consumer and producer index).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.0, < 6.1.18 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/3a50cf1e8e5157b82268eee7e330dbe5736a0948Patch
- https://git.kernel.org/stable/c/52e6e7a0bc04c85012a9251c7cf2d444a77eb966Patch
- https://git.kernel.org/stable/c/6afdedc4e66e3846ce497744f01b95c34bf39d21Patch
FAQ
What is CVE-2023-53398?
CVE-2023-53398 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: mlx5: fix possible ptp queue fifo use-after-free Fifo indexes are not checked during pop operations and it leads to potential use-...
How severe is CVE-2023-53398?
CVE-2023-53398 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-53398?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.