CVE-2022-4269
Advisory lineage Upstream: 0 Downstream: 37
Modified
Published: 05 Dec 2022, 00:00
Last modified:14 Apr 2025, 18:10
Vulnerability Summary
Overall Risk (default)
low
22/100 CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
05 Dec 2022, 00:00
Published
Vulnerability first disclosed
14 Apr 2025, 18:10
Last Modified
Vulnerability information updated
Description
A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.02%• Percentile: 6%
Techniques & Countermeasures
- CWE-833•Deadlock
The product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock.
Affected Systems
- linux•linux_kernel
4.1:rc1