CVE-2022-1204: debian debian_linux Use After Free
Vulnerability summary
CVE-2022-1204 is a medium (CVSS 5.5) Use After Free vulnerability in debian debian_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.9% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 6Timeline
- 29-08-2022PublishedVulnerability first disclosed.
- 02-08-2024Last modifiedVulnerability information updated.
Description
A use-after-free flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.40% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundExploit Reference (openwall.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu78 products
- linuxAll versions (No fix recorded) | < 4.4.0-234.268 | < 4.15.0-189.200 | < 5.4.0-122.138 | < 5.15.0-37.39
- linux-aws< 4.4.0-1113.119 | < 4.4.0-1151.166 | < 4.15.0-1137.148 | < 5.4.0-1081.88 | < 5.15.0-1011.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13All versions (No fix recorded)
Debian2 products
- linux< 5.17.3-1
- debian_linuxEOL10.0
Fedoraproject1 product
- fedoraEOL34 | 35
Linux1 product
- linux_kernel< 5.17 | 5.17:rc1 | 5.17:rc2
4 vendors · 82 products
References
19 links- www.openwall.com/lists/oss-security/2022/04/02/2X Refsource MISCREPORTExploitMailing ListPatchThird Party Advisory