CVE-2022-42703

low-risk
Published 2022-10-09

mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.

Do I need to act?

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0.98% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (10)

Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=2351
Mailing List https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7
Mailing List https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=25552...
Patch https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542...
Exploit https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringin...
Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=2351
Mailing List https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7
Mailing List https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=25552...
Patch https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542...
Exploit https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringin...
26
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal