What’s Vulnerable › Vulnerabilities

CVE-2022-48831: ima: fix reference leak in asymmetric_verify()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-16 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: ima: fix reference leak in asymmetric_verify() Don't leak a reference to the key if its algorithm is unknown.

Affected products

• Linux kernel: from 5.13 before 5.15.24; from 5.16 before 5.16.10; 5.17-rc1, 5.17-rc2, 5.17-rc3 — fixed in 5.15.24, 5.16.10

How to fix

Upgrade to a fixed version: Linux kernel 5.15.24, 5.16.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0838d6d68182f0b28a5434bc6d50727c4757e35b
• https://git.kernel.org/stable/c/89f586d3398f4cc0432ed870949dffb702940754
• https://git.kernel.org/stable/c/926fd9f23b27ca6587492c3f58f4c7f4cd01dad5
• https://git.kernel.org/stable/c/0838d6d68182f0b28a5434bc6d50727c4757e35b
• https://git.kernel.org/stable/c/89f586d3398f4cc0432ed870949dffb702940754
• https://git.kernel.org/stable/c/926fd9f23b27ca6587492c3f58f4c7f4cd01dad5

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