CVE-2020-27842

NameCVE-2020-27842
DescriptionThere's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2975-1, DSA-4882-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openjpeg2 (PTS)buster, buster (security)2.3.0-2+deb10u2fixed
bullseye2.4.0-3fixed
bookworm, sid, trixie2.5.0-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openjpeg2sourcestretch2.1.2-1.1+deb9u7DLA-2975-1
openjpeg2sourcebuster2.3.0-2+deb10u2DSA-4882-1
openjpeg2source(unstable)2.4.0-1

Notes

https://github.com/uclouvain/openjpeg/issues/1294
Fixed by: https://github.com/uclouvain/openjpeg/commit/fbd30b064f8f9607d500437b6fedc41431fd6cdc (v2.4.0)

Search for package or bug name: Reporting problems