CVE-2021-29338: Integer Overflow in OpenJPEG v2.4.0 allows remote attackers to crash the application, causing a Denial of Service (DoS)

Medium severity · published Apr 14, 2021

CVE-2021-29338

Integer Overflow in OpenJPEG v2.4.0 allows remote attackers to crash the application, causing a Denial of Service (DoS)

5.5

CVSS

1.6%

EPSS

On KEV

Description

Integer Overflow in OpenJPEG v2.4.0 allows remote attackers to crash the application, causing a Denial of Service (DoS). This occurs when the attacker uses the command line option "-ImgDir" on a directory that contains 1048576 files.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack vector

Local

Complexity

Low

Privileges

None

User interaction

Required

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.6% · higher than 75% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Debian Linux · Debian

9.0 · source: NVD

Fedora · Fedoraproject

33; 34 · source: NVD

Openjpeg · Uclouvain

2.4.0 · source: NVD

Affected product

Debian Linux

Debian

All Debian Linux CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-29338

CVE.org

https://www.cve.org/CVERecord?id=CVE-2021-29338

Exploit

https://github.com/uclouvain/openjpeg/issues/1338

Mailing List

https://lists.debian.org/debian-lts-announce/2022/04/msg00006.html

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZ54FGM2IGAP4AWSJ22JKHOPHCR3FGYU/

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QB6AI7CWXWMEDZIQY4LQ6DMIEXMDOHUP/

Third Party Advisory

https://security.gentoo.org/glsa/202209-04

lists.debian.org

https://lists.debian.org/debian-lts-announce/2025/04/msg00002.html