#VU11078 Heap-based buffer over-read in Exempi - CVE-2018-7730

Vulnerability identifier: #VU11078

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-2018-7730

CWE-ID: CWE-126

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 in the PSD_MetaHandler::CacheFileData() function is due to heap-based buffer over-read. A local attacker can submit a specially crafted .xls 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.