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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
Frequently Asked Questions
What is CVE-2023-42754?
How severe is CVE-2023-42754?
How do I fix CVE-2023-42754?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2023
- CVE-2023-42749In enginnermode service, there is a possible way to write pe…5.5
- CVE-2023-4275Rejected reason: It is invalid.
- CVE-2023-42750In gnss service, there is a possible out of bounds write due…4.4
- CVE-2023-42751In gnss service, there is a possible out of bounds write due…4.4
- CVE-2023-42752An integer overflow flaw was found in the Linux kernel. This…5.5
- CVE-2023-42753An array indexing vulnerability was found in the netfilter s…7.8
- CVE-2023-42755A flaw was found in the IPv4 Resource Reservation Protocol (…5.5
- CVE-2023-42756A flaw was found in the Netfilter subsystem of the Linux ker…4.7
- CVE-2023-42757Process Explorer before 17.04 allows attackers to make it fu…4.2
- CVE-2023-4276The Absolute Privacy plugin for WordPress is vulnerable to C…8.8
- CVE-2023-42765 An attacker with access to the vulnerable software …5.4
- CVE-2023-42766Improper input validation in some Intel NUC 8 Compute Elemen…7.8
Are you affected by CVE-2023-42754?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST