| Name | CVE-2018-20481 |
| Description | XRef::getEntry in XRef.cc in Poppler 0.72.0 mishandles unallocated XRef entries, which allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted PDF document, when XRefEntry::setFlag in XRef.h is called from Parser::makeStream in Parser.cc. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1706-1, DLA-2287-1 |
| Debian Bugs | 917325 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| poppler (PTS) | jessie, jessie (lts) | 0.26.5-2+deb8u16 | fixed |
| stretch (security) | 0.48.0-2+deb9u4 | fixed | |
| stretch (lts), stretch | 0.48.0-2+deb9u6 | fixed | |
| buster (security), buster, buster (lts) | 0.71.0-5+deb10u3 | fixed | |
| bullseye (security), bullseye | 20.09.0-3.1+deb11u1 | fixed | |
| bookworm | 22.12.0-2 | fixed | |
| sid, trixie | 24.08.0-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| poppler | source | wheezy | (unfixed) | end-of-life | ||
| poppler | source | jessie | 0.26.5-2+deb8u8 | DLA-1706-1 | ||
| poppler | source | stretch | 0.48.0-2+deb9u3 | DLA-2287-1 | ||
| poppler | source | (unstable) | 0.71.0-4 | low | 917325 |
https://gitlab.freedesktop.org/poppler/poppler/issues/692
Proposed fix: https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143
https://gitlab.freedesktop.org/poppler/poppler/commit/39a251b1b3a3343400a08e2f03c5518a26624626