5.5

CVE-2022-4129: fedoraproject fedora Improper Locking

Modified
AliasesUBUNTU-CVE-2022-4129DEBIAN-CVE-2022-4129
Published 28-11-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-4129 is a medium (CVSS 5.5) Improper Locking vulnerability in fedoraproject fedora. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 32 · Related 24
DLA-3404-1MGASA-2023-0087MGASA-2023-0088RHSA-2023:2148RHSA-2023:2458RHSA-2023:2736

Timeline

  1. 28-11-2022
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.18% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu90 products
  • linuxAll versions (No fix recorded) | < 5.4.0-147.164 | < 5.15.0-70.77
  • linux-allwinner-5.19< 5.19.0-1012.12~22.04.1
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1100.108 | < 5.15.0-1034.38
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.4-1
Fedoraproject1 product
Linux1 product

4 vendors · 93 products

References

23 links
Show all 23 references