Integer overflow in Linux Kernel
CVE-2023-42752
An integer overflow flaw was found in the Linux kernel. This issue leads to the kernel allocating `skb_shared_info` in the userspace, which is exploitable in systems without SMAP protection since `skb_shared_info` contains references to function pointers.
Vulnerability class: Integer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (18.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.2% 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
Weakness classification (CWE)
References
- packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099…
- access.redhat.com/security/cve/CVE-2023-42752 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/ (Patch, Mailing List)
- git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/ (Patch, Mailing List)
Frequently asked questions
- What is CVE-2023-42752?
- CVE-2023-42752 is a medium-severity vulnerability in Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2023-10-13.
- How severe is CVE-2023-42752?
- Medium severity. CVSS v3 base score is 5.5 out of 10.