Use After Free in Linux Kernel
CVE-2022-28893
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/04/11/4 (mailing-list, Patch, Mailing List, Issue Tracking)
- www.openwall.com/lists/oss-security/2022/04/11/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/04/11/5 (mailing-list, Patch, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220526-0002/ (Third Party Advisory)
- www.debian.org/security/2022/dsa-5161 (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-28893?
- CVE-2022-28893 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2022-04-11.
- How severe is CVE-2022-28893?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-28893 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.