CVE-2022-49058

Aliases:UBUNTU-CVE-2022-49058DEBIAN-CVE-2022-49058
Advisory lineage Upstream: 0 Downstream: 18
Modified
Published: 26 Feb 2025, 01:54
Last modified:05 Aug 2026, 08:53

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.1 CRITICAL
v3.1 (cve.org)
EPSS Score
0.87% LOW
1% probability +0.80%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Feb 2025, 01:54
Published
Vulnerability first disclosed
05 Aug 2026, 08:53
Last Modified
Vulnerability information updated

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 Metrics

  • v4.0•HIGH•Score: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • v3.1•CRITICAL•Score: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.87%• Percentile: 57%

Techniques & Countermeasures

  • CWE-120•Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

    The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Affected Systems

  • debian•linux

    < 5.10.113-1 | < 5.17.6-1 | < 5.17.6-1 | < 5.17.6-1

  • ubuntu•linux

    all | < 4.15.0-189.200 | < 5.4.0-122.138 | < 5.15.0-37.39

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    all | < 4.15.0-1137.148 | < 5.4.0-1081.88 | < 5.15.0-1011.14

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1081.88~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2076.81 | all | < 5.4.0-1081.88+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1137.148~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1146.161~14.04.1 | < 4.15.0-1146.161~16.04.1 | all | < 5.4.0-1086.91 | < 5.15.0-1010.12

  • ubuntu•linux-azure-4.15

    < 4.15.0-1146.161

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1008.9~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1086.91~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-6.5

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2057.63 | all | < 5.4.0-1086.91+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1042.47

  • ubuntu•linux-fips

    all | < 4.15.0-1094.105 | < 5.4.0-1057.65

  • ubuntu•linux-gcp

    < 4.15.0-1131.147~16.04.1 | all | < 5.4.0-1084.92 | < 5.15.0-1008.12

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1131.147

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1084.92~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    all

  • ubuntu•linux-gcp-6.5

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2041.46 | all | < 5.4.0-1081.88+fips1

  • ubuntu•linux-gke

    all | < 5.15.0-1008.10

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    all

  • ubuntu•linux-gkeop-5.15

    all

Showing first 50 affected entries in server-rendered view.

References (12)