NULL pointer dereference in Linux Kernel
CVE-2023-23005
In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error pointer). NOTE: this is disputed by third parties because there are no realistic cases in which a user can cause the alloc_memory_type error case to be reached.
EPSS: 0.003 (18.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel
- Suse Linux_enterprise_server — versions 15
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch)
- cve@mitre.org (Patch, Mailing List, Release Notes)
- cve@mitre.org (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2023-23005?
- CVE-2023-23005 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-03-01.
- How severe is CVE-2023-23005?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-23005 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.