CVE-2022-49258

HIGH EPSS 15.6%
Published Feb 26, 20251y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: ccree - Fix use after free in cc_cipher_exit() kfree_sensitive(ctx_p->user.key) will free the ctx_p->user.key. But ctx_p->user.key is still used in the next line, which will lead to a use after free. We can call kfree_sensitive() after dev_dbg() to avoid the uaf.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
15.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥4.17  –  <5.10.110
linuxlinux_kernel*≥5.11  –  <5.15.33
linuxlinux_kernel*≥5.16  –  <5.16.19
linuxlinux_kernel*≥5.17  –  <5.17.2

References 5

  • git.kernel.org https://git.kernel.org/stable/c/25c358efee5153dfd240d4e0d3169d5bebe9cacd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/335bf1fc74f775a8255257aa3e33763f2257b676
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d950c34074ed74d2713c3856ba01264523289e6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c93017c8d5ebf55a4e453ac7c84cc84cf92ab570
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cffb5382bd8d3cf21b874ab5b84bf7618932286b
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/25c358efee5153dfd240d4e0d3169d5bebe9cacd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/335bf1fc74f775a8255257aa3e33763f2257b676
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d950c34074ed74d2713c3856ba01264523289e6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c93017c8d5ebf55a4e453ac7c84cc84cf92ab570
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cffb5382bd8d3cf21b874ab5b84bf7618932286b
    Patch