| Name | CVE-2016-7977 |
| Description | Ghostscript before 9.21 might allow remote attackers to bypass the SAFER mode protection mechanism and consequently read arbitrary files via the use of the .libfile operator in a crafted postscript document. |
| 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-674-1, DSA-3691-1 |
| Debian Bugs | 839841 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| ghostscript (PTS) | jessie, jessie (lts) | 9.26a~dfsg-0+deb8u13 | fixed |
| stretch (security) | 9.26a~dfsg-0+deb9u9 | fixed |
| stretch (lts), stretch | 9.26a~dfsg-0+deb9u13 | fixed |
| buster, buster (lts) | 9.27~dfsg-2+deb10u10 | fixed |
| buster (security) | 9.27~dfsg-2+deb10u9 | fixed |
| bullseye | 9.53.3~dfsg-7+deb11u7 | fixed |
| bullseye (security) | 9.53.3~dfsg-7+deb11u9 | fixed |
| bookworm | 10.0.0~dfsg-11+deb12u5 | fixed |
| bookworm (security) | 10.0.0~dfsg-11+deb12u6 | fixed |
| sid, trixie | 10.04.0~dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
Upstream bug: http://bugs.ghostscript.com/show_bug.cgi?id=697169
Reproducer: https://www.openwall.com/lists/oss-security/2016/09/29/28
Patch: https://git.ghostscript.com/?p=ghostpdl.git;h=8abd22010eb4db0fb1b10e430d5f5d83e015ef70
https://www.openwall.com/lists/oss-security/2016/10/05/7