Use After Free in Linux Kernel
CVE-2023-51781
An issue was discovered in the Linux kernel before 6.6.8. atalk_ioctl in net/appletalk/ddp.c has a use-after-free because of an atalk_recvmsg race condition.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (21.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Linux Kernel — versions 2.6.12, 6.7
- Debian Linux — versions 10.0
Weakness classification (CWE)
References
- cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.8 (Release Notes)
- github.com/torvalds/linux/commit/189ff16722ee36ced4d2a2469d4ab65a8fee4198 (Patch)
- lists.debian.org/debian-lts-announce/2024/01/msg00004.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2024/01/msg00005.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-51781?
- CVE-2023-51781 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.0/10. Published 2024-01-11.
- How severe is CVE-2023-51781?
- High severity. CVSS v3 base score is 7.0 out of 10.