CVE-2022-40307

low-risk
Published 2022-09-09

An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (3)

Affected Vendors

Debian Linux

References (8)

Patch https://github.com/torvalds/linux/commit/9cb636b5f6a8cc6d1b50809ec8f8d33ae0c84c9...
Mailing List https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
Mailing List https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
Third Party Advisory https://www.debian.org/security/2022/dsa-5257
Patch https://github.com/torvalds/linux/commit/9cb636b5f6a8cc6d1b50809ec8f8d33ae0c84c9...
Mailing List https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
Mailing List https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
Third Party Advisory https://www.debian.org/security/2022/dsa-5257
21
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 9/34 · Low