CVE-2022-27666
HIGH severity · CVSS 7.8 · Out-of-bounds write
7.8CVSS HIGH
Summary
A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)6%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (4)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=2061633 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=2061633Patch
- https://github.com/torvalds/linux/commit/ebe48d368e97d007bfeb76fcb065d6cfc4c96645Patch
- https://security.netapp.com/advisory/ntap-20220429-0001/Advisory
- https://www.debian.org/security/2022/dsa-5127Advisory
- https://www.debian.org/security/2022/dsa-5173Advisory