#VU11756 Use-after-free error in Exempi - CVE-2017-18234

Vulnerability identifier: #VU11756

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-18234

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Exempi
Client/Desktop applications / Multimedia software

Vendor: Freedesktop.org

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists due to improper processing of a file that contains JPEG data related to the XMPFiles/source/FormatSupport/ReconcileTIFF.cpp, XMPFiles/source/FormatSupport/TIFF_MemoryReader.cpp and XMPFiles/source/FormatSupport/TIFF_Support.hpp source code files. A remote attacker can trick the victim into accessing a file that contains customized JPEG data that submits malicious input, trigger use after free and cause the service to crash.

Mitigation
Update to version 2.4.3.

Vulnerable software versions

Exempi: 2.1.0 - 2.4.2

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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?

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.