Use After Free in Linux Kernel
CVE-2023-1855
A use-after-free flaw was found in xgene_hwmon_remove in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux Kernel Driver (xgene-hwmon). This flaw could allow a local attacker to crash the system due to a race problem. This vulnerability could even lead to a kernel information leak problem.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (12.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Linux Kernel — versions 6.3
- Debian Linux — versions 10.0
- Kernel — versions Linux kernel prior to Kernel 6.3 RC3
Weakness classification (CWE)
References
- lore.kernel.org/all/20230318122758.2140868-1-linux@roeck-us.net/
- lists.debian.org/debian-lts-announce/2023/05/msg00005.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/05/msg00006.html (mailing-list, Mailing List, Third Party Advisory)
- github.com/torvalds/linux/commit/cb090e64cf25602b9adaf32d5dfc9c8bec493cd1 (Patch)
Frequently asked questions
- What is CVE-2023-1855?
- CVE-2023-1855 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 6.3/10. Published 2023-04-05.
- How severe is CVE-2023-1855?
- Medium severity. CVSS v3 base score is 6.3 out of 10.