Use After Free in Linux Kernel
CVE-2023-3863
A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (12.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.2% 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
- Debian Linux — versions 10.0, 11.0, 12.0
- Fedora
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Kernel — versions 6.5-rc1
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2023-3863 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Patch, Third Party Advisory, Issue Tracking)
- github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10 (Patch)
- www.debian.org/security/2023/dsa-5480 (Third Party Advisory)
- www.debian.org/security/2023/dsa-5492 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00027.html (Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20240202-0002/
Frequently asked questions
- What is CVE-2023-3863?
- CVE-2023-3863 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 6.4/10. Published 2023-07-24.
- How severe is CVE-2023-3863?
- Medium severity. CVSS v3 base score is 6.4 out of 10.