#VU19603 Buffer overflow in Poppler - CVE-2019-9545

Vulnerability identifier: #VU19603

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-9545

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Poppler
Client/Desktop applications / Office applications

Vendor: Freedesktop.org

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing PDF files within the JBIG2Stream::readTextRegion() function in JBIG2Stream.cc. A remote attacker can create a specially crafted PDF document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Poppler: 0.74.0

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External links
https://gitlab.freedesktop.org/poppler/poppler/issues/731
https://research.loginsoft.com/bugs/recursive-function-call-in-function-jbig2streamreadtextregion-poppler-0-74-0/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.