CVE-2018-10938
UnknownEPSS 5.00%
Last modified
CVE-2018-10938 is a vulnerability of currently unknown severity. A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. EPSS estimates a 5.00% chance of exploitation in the next 30 days.
Description
A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system before an attacker could leverage this flaw.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | 4.0 | — |
| Linux | Linux Kernel | 4.1 | — |
| Linux | Linux Kernel | 4.2 | — |
| Linux | Linux Kernel | 4.3 | — |
| Linux | Linux Kernel | 4.4 | — |
| Linux | Linux Kernel | 4.5 | — |
| Linux | Linux Kernel | 4.6 | — |
| Linux | Linux Kernel | 4.7 | — |
| Linux | Linux Kernel | 4.8 | — |
| Linux | Linux Kernel | 4.9 | — |
| Linux | Linux Kernel | 4.10 | — |
| Linux | Linux Kernel | 4.11 | — |
| Linux | Linux Kernel | 4.12 | — |
| Linux | Linux Kernel | 4.13 | Rc1 |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 16.04 | — |
| Debian | Debian Linux | 9.0 | — |
References
- http://seclists.org/oss-sec/2018/q3/179Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/105154Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041569Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10938Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40413955ee265a5e42f710940ec78f5450d49149Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3797-1/Third Party Advisory
- https://usn.ubuntu.com/3797-2/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4308Third Party Advisory
- http://seclists.org/oss-sec/2018/q3/179Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/105154Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041569Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10938Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40413955ee265a5e42f710940ec78f5450d49149Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3797-1/Third Party Advisory
- https://usn.ubuntu.com/3797-2/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4308Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-10938?
A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system before an attacker could leverage this flaw.
How severe is CVE-2018-10938?
Severity scoring for CVE-2018-10938 is pending analysis. The EPSS model estimates a 5.00% probability of exploitation in the next 30 days.
How do I fix CVE-2018-10938?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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.
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