CVE-2022-49058

HIGH EPSS 22.1%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.

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
22.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-120

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥2.6.37  –  <4.9.311
linuxlinux_kernel*≥4.10  –  <4.14.276
linuxlinux_kernel*≥4.15  –  <4.19.239
linuxlinux_kernel*≥4.20  –  <5.4.190
linuxlinux_kernel*≥5.5  –  <5.10.112
linuxlinux_kernel*≥5.11  –  <5.15.35
linuxlinux_kernel*≥5.16  –  <5.17.4
linuxlinux_kernel5.18any
linuxlinux_kernel5.18any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707bee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707bee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91
    Patch