CVE-2020-16293

NameCVE-2020-16293
DescriptionA null pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted PDF file. This is fixed in v9.51.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2335-1, DSA-4748-1, ELA-262-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ghostscript (PTS)jessie, jessie (lts)9.26a~dfsg-0+deb8u12fixed
stretch (security)9.26a~dfsg-0+deb9u9fixed
stretch (lts), stretch9.26a~dfsg-0+deb9u12fixed
buster9.27~dfsg-2+deb10u5fixed
buster (security)9.27~dfsg-2+deb10u9fixed
bullseye (security), bullseye9.53.3~dfsg-7+deb11u7fixed
bookworm (security), bookworm10.0.0~dfsg-11+deb12u4fixed
sid, trixie10.03.1~dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ghostscriptsourcejessie9.26a~dfsg-0+deb8u7ELA-262-1
ghostscriptsourcestretch9.26a~dfsg-0+deb9u7DLA-2335-1
ghostscriptsourcebuster9.27~dfsg-2+deb10u4DSA-4748-1
ghostscriptsource(unstable)9.51~dfsg-1

Notes

https://bugs.ghostscript.com/show_bug.cgi?id=701795
https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=7870f4951bcc6a153f317e3439e14d0e929fd231 (9.51)

Search for package or bug name: Reporting problems