CVE-2019-5042 — An exploitable Use-After-Free vulnerability exists in the way FunctionType 0 PDF

An exploitable Use-After-Free vulnerability exists in the way FunctionType 0 PDF elements are processed in Aspose.PDF 19.2 for C++. A specially crafted PDF can cause a dangling heap pointer, resulting in a use-after-free. An attacker can send a malicious PDF to trigger this vulne

01What is this vulnerability?

An exploitable Use-After-Free vulnerability exists in the way FunctionType 0 PDF elements are processed in Aspose.PDF 19.2 for C++. A specially crafted PDF can cause a dangling heap pointer, resulting in a use-after-free. An attacker can send a malicious PDF to trigger this vulnerability.

02Affected products

Vendor	Product	Versions
Talos	Aspose.PDF for C++	19.2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-09-18T20:41:35.000Z
• Last modified: 2024-08-04T19:47:55.846Z

09References

• www.talosintelligence.com — https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0809