CVE-2020-35702

Name	CVE-2020-35702
Description	DCTStream::getChars in DCTStream.cc in Poppler 20.12.1 has a heap-based buffer overflow via a crafted PDF document. NOTE: later reports indicate that this only affects builds from Poppler git clones in late December 2020, not the 20.12.1 release. In this situation, it should NOT be considered a Poppler vulnerability. However, several third-party Open Source projects directly rely on Poppler git clones made at arbitrary times, and therefore the CVE remains useful to users of those projects
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
poppler (PTS)	bullseye (security), bullseye	20.09.0-3.1+deb11u1	fixed
	bookworm	22.12.0-2	fixed
	sid, trixie	25.03.0-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
poppler	source	(unstable)	(not affected)

Notes

- poppler <not-affected> (Vulnerable code introduced later)
https://gitlab.freedesktop.org/poppler/poppler/-/issues/1011
Introduced by: https://gitlab.freedesktop.org/poppler/poppler/-/commit/f1c3ded779582aef5f2cbaf29bc5da7a8eae6f69
Fixed by: https://gitlab.freedesktop.org/poppler/poppler/-/commit/ae614bf8ab42c9d0c7ac57ecdfdcbcfc4ff6c639