#VU8652 NULL pointer derefenrece in Poppler - CVE-2017-14977

Vulnerability identifier: #VU8652

Vulnerability risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-14977

CWE-ID: CWE-476

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 cause a denial of service (DoS) conditions.

The vulnerability exists due to an error in FoFiTrueType::getCFFBlock function in FoFiTrueType.cc when processing documents. A remote attacker can send a specially crafted document, trigger NULL pointer dereference and perform a denial of service attack.

Successful exploitation of the vulnerability may allow an attacker to cause application crash.

Mitigation
Install update from vendor's repository:
https://bugs.freedesktop.org/show_bug.cgi?id=103045

Vulnerable software versions

Poppler: 0.50.0 - 0.59.0

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External links
https://bugs.freedesktop.org/show_bug.cgi?id=103045

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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.