#VU21456 Infinite loop in OpenJPEG - CVE-2019-12973

Vulnerability identifier: #VU21456

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/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-2019-12973

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

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

Vendor: openjpeg.org

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.c in Open JPEG. A remote attacker can create a specially crafted .bmp file, pass it to the affected application and perform denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenJPEG: 2.1.1 - 2.3.1

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External links
https://lists.opensuse.org/opensuse-security-announce/2019-09/msg00088.html
https://lists.opensuse.org/opensuse-security-announce/2019-09/msg00090.html
https://www.securityfocus.com/bid/108900
https://github.com/uclouvain/openjpeg/commit/8ee335227bbcaf1614124046aa25e53d67b11ec3
https://github.com/uclouvain/openjpeg/pull/1185/commits/cbe7384016083eac16078b359acd7a842253d503
https://github.com/uclouvain/openjpeg/blob/v2.4.0/CHANGELOG.md

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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.