CVE-2020-21676

NameCVE-2020-21676
DescriptionA stack-based buffer overflow in the genpstrx_text() component in genpstricks.c of fig2dev 3.2.7b allows attackers to cause a denial of service (DOS) via converting a xfig file into pstricks format.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2778-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
fig2dev (PTS)stretch1:3.2.6a-2+deb9u3vulnerable
stretch (security)1:3.2.6a-2+deb9u4fixed
buster1:3.2.7a-5+deb10u4vulnerable
bullseye1:3.2.8-3fixed
sid, bookworm1:3.2.8b-1fixed
transfig (PTS)jessie, jessie (lts)1:3.2.6a-2~deb8u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
fig2devsourcestretch1:3.2.6a-2+deb9u4DLA-2778-1
fig2devsource(unstable)1:3.2.8-1
transfigsourcejessie(not affected)
transfigsource(unstable)(unfixed)

Notes

[buster] - fig2dev <no-dsa> (Minor issue)
[stretch] - fig2dev <not-affected> (Vulnerable code introduced later)
https://sourceforge.net/p/mcj/tickets/76/
https://sourceforge.net/p/mcj/fig2dev/ci/acccc89c20206a5db1f463438ba444e35bcb400e/ (3.2.8)
Introduced by https://sourceforge.net/p/mcj/fig2dev/ci/102f607eea49785d4a9c9c24af85f046c23674de (3.2.7)
[jessie] - transfig <not-affected> (Vulnerable code introduced later)

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