CVE-2022-27666

moderate-risk
Published 2022-03-23

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.

Do I need to act?

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0.80% 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
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (20)

Affected Vendors

Debian Redhat Linux Fedoraproject Netapp

References (10)

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2061633
Patch https://github.com/torvalds/linux/commit/ebe48d368e97d007bfeb76fcb065d6cfc4c9664...
Third Party Advisory https://security.netapp.com/advisory/ntap-20220429-0001/
Third Party Advisory https://www.debian.org/security/2022/dsa-5127
Third Party Advisory https://www.debian.org/security/2022/dsa-5173
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2061633
Patch https://github.com/torvalds/linux/commit/ebe48d368e97d007bfeb76fcb065d6cfc4c9664...
Third Party Advisory https://security.netapp.com/advisory/ntap-20220429-0001/
Third Party Advisory https://www.debian.org/security/2022/dsa-5127
Third Party Advisory https://www.debian.org/security/2022/dsa-5173
48
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 3/34 · Minimal
Exposure 21/34 · High