#VU63449 Integer overflow in OpenJPEG - CVE-2021-29338

Vulnerability identifier: #VU63449

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-2021-29338

CWE-ID: CWE-190

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 attack.

The vulnerability exists due to integer overflow when using the command line option "-ImgDir" on a directory that contains 1048576 files. A remote attacker can pass specially crafted data to the application, trigger integer overflow and perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenJPEG: 2.4.0

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External links
https://github.com/uclouvain/openjpeg/issues/1338
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QB6AI7CWXWMEDZIQY4LQ6DMIEXMDOHUP/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZ54FGM2IGAP4AWSJ22JKHOPHCR3FGYU/
https://lists.debian.org/debian-lts-announce/2022/04/msg00006.html

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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.