CVE-2022-28893: debian debian_linux Use After Free
Vulnerability summary
CVE-2022-28893 is a high (CVSS 7.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.2% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 18 · Related 10Timeline
- 11-04-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The SUNRPC subsystem in the Linux kernel through 5.17.2 can call xs_xprt_free before ensuring that sockets are in the intended state.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.41% 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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu75 products
- linux< 5.4.0-124.140 | < 5.15.0-43.46
- linux-aws< 5.4.0-1083.90 | < 5.15.0-1017.21
- 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_linuxEOL11.0
Linux1 product
- linux_kernel≥ 5.1, < 5.4.196 | ≥ 5.5, < 5.10.117 | ≥ 5.11, < 5.15.41 | ≥ 5.16, < 5.16.20 | ≥ 5.17, < 5.17.3
Opensuse1 product
- kernel-source&distro=openSUSE Tumbleweed< 5.17.4-1.1
5 vendors · 90 products
References
19 links- www.openwall.com/lists/oss-security/2022/04/11/3Mailing ListX Refsource MLISTPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/04/11/5Mailing ListX Refsource MLISTPatchThird Party Advisory
- www.debian.org/security/2022/dsa-5161Vendor AdvisoryX Refsource DEBIANMailing ListThird Party Advisory