#VU11479 Improper input validation in OpenJPEG - CVE-2018-6616

Vulnerability identifier: #VU11479

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-2018-6616

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
OpenJPEG
Universal components / Libraries / Libraries used by multiple products

Vendor: openjpeg.org

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

The weakness exists in the opj_t1_encode_cblks function, which is defined in the openjp2/t1.c source code file, due to insufficient validation of user-supplied input. A local attacker can submit a specially crafted BMP file and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

OpenJPEG: 2.3.0

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External links
https://github.com/uclouvain/openjpeg/issues/1059

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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.