Vulnerability Description
An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 6.0 |
| Redhat | Enterprise Linux | 8.0 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2121800ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing ListThird Party Advisory
- https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.
- https://bugzilla.redhat.com/show_bug.cgi?id=2121800ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing ListThird Party Advisory
- https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.
FAQ
What is CVE-2022-2905?
CVE-2022-2905 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a loc...
How severe is CVE-2022-2905?
CVE-2022-2905 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-2905?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Debian Debian Linux.