CVE-2023-42754
Last modified
CVE-2023-42754 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | < 6.6 | — |
| Linux | Linux Kernel | 6.6 | Rc1 |
| Redhat | Enterprise Linux | 8.0 | — |
| Redhat | Enterprise Linux | 9.0 | — |
| Fedoraproject | Fedora | 37 | — |
| Fedoraproject | Fedora | 38 | — |
| Fedoraproject | Fedora | 39 | — |
References
- https://access.redhat.com/security/cve/CVE-2023-42754Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2239845Issue Tracking, Patch, Third Party Advisory
- https://seclists.org/oss-sec/2023/q4/14Exploit, Mailing List, Patch, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-42754Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2239845Issue Tracking, Patch, Third Party Advisory
- https://seclists.org/oss-sec/2023/q4/14Exploit, Mailing List, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
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