#VU11087 Heap-based buffer overflow in Exempi - CVE-2018-7729

Vulnerability identifier: #VU11087

Vulnerability risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-7729

CWE-ID: CWE-122

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Exempi
Client/Desktop applications / Multimedia software

Vendor: Freedesktop.org

Description
The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the PostScript_MetaHandler::ParsePSFile() function due to heap-based buffer overflow. A local attacker can send a specially crafted file, trigger memory corruption and cause the service to crash.

Mitigation
Update to version 2.4.5.

Vulnerable software versions

Exempi: 2.1.0 - 2.4.4

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External links
https://cgit.freedesktop.org/exempi/tree/NEWS

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.