CVE-2022-49566

MEDIUM

Linux Kernel 4.8-5.15.58, 5.16.0-5.18.15 - Use-After-Free in RSA Key Handling

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix memory leak in RSA When an RSA key represented in form 2 (as defined in PKCS #1 V2.1) is used, some components of the private key persist even after the TFM is released. Replace the explicit calls to free the buffers in qat_rsa_exit_tfm() with a call to qat_rsa_clear_ctx() which frees all buffers referenced in the TFM context.

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/a843925e0287eebb4aa808666bf22c664dfe4c53

Patch

https://git.kernel.org/stable/c/0f967fdc09955221a1951a279481b0bf4d359941

Patch

https://git.kernel.org/stable/c/80a52e1ee7757b742f96bfb0d58f0c14eb6583d0

Scores

CVSS v3 5.5

EPSS 0.0024

EPSS Percentile 15.1%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-401

Status published

Products (11)

linux/Kernel 4.8.0 - 5.15.58linux

linux/Kernel 5.16.0 - 5.18.15linux

Linux/Linux < 4.8

Linux/Linux 4.8

Linux/Linux 5.15.58 - 5.15.*

Linux/Linux 5.18.15 - 5.18.*

Linux/Linux 5.19

Linux/Linux 879f77e9071f029e1c9bd5a75814ecf51370f846 - 0f967fdc09955221a1951a279481b0bf4d359941

Linux/Linux 879f77e9071f029e1c9bd5a75814ecf51370f846 - 80a52e1ee7757b742f96bfb0d58f0c14eb6583d0

Linux/Linux 879f77e9071f029e1c9bd5a75814ecf51370f846 - a843925e0287eebb4aa808666bf22c664dfe4c53

... and 1 more

Published Feb 26, 2025

Tracked Since Feb 18, 2026