#VU8653 Heap-based buffer overflow in Poppler - CVE-2017-14976

Vulnerability identifier: #VU8653

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-14976

CWE-ID: CWE-122

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 perform a denial of service (DoS) attack.

The vulnerability exists due to boundary error in FoFiType1C::convertToType0 function in FoFiType1C.cc when processing fonts in documents. A remote unauthenticated attacker can create a specially crafted document and trigger application crash.

Mitigation
Install update from vendor's repository:
https://cgit.freedesktop.org/poppler/poppler/commit/?id=da63c35549e8852a410946ab016a3f25ac701bdf

Vulnerable software versions

Poppler: 0.50.0 - 0.59.0

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External links
https://cgit.freedesktop.org/poppler/poppler/commit/?id=da63c35549e8852a410946ab016a3f25ac701bdf
https://bugzilla.freedesktop.org/show_bug.cgi?id=102724

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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.