CVE-2022-2905

Public Exploit

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory redhat.com Third-Party Advisory debian.org
Affected: n/a kernel
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2121800 issue tracking patch exploit third party advisory
https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel%40iogearbox.net/
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2022-2905?
CVE-2022-2905 has been scored as a medium severity vulnerability.
How to fix CVE-2022-2905?
To fix CVE-2022-2905, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-2905 being actively exploited in the wild?
It is possible that CVE-2022-2905 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-2905?
CVE-2022-2905 affects n/a kernel.
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