Vulnerability identifier: #VU63449

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

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
http://github.com/uclouvain/openjpeg/issues/1338
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QB6AI7CWXWMEDZIQY4LQ6DMIEXMDOHUP/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZ54FGM2IGAP4AWSJ22JKHOPHCR3FGYU/
http://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.