Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 6.5.7 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LS
- https://access.redhat.com/security/cve/CVE-2023-42752Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2239828Issue TrackingThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=915d97Mailing ListPatch
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c3b704Mailing ListPatch
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LS
- https://access.redhat.com/security/cve/CVE-2023-42752Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2239828Issue TrackingThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=915d97Mailing ListPatch
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c3b704Mailing ListPatch
FAQ
What is CVE-2023-42752?
CVE-2023-42752 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...
How severe is CVE-2023-42752?
CVE-2023-42752 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-42752?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.