CVE-2016-7977

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-05-23 · updated 2026-06-17
Weakness: CWE-200

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.

Affected products

Artifex Ghostscript: through 9.20

References

http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=8abd22010eb4db0fb1b10e430d5f5d83e015ef70
http://rhn.redhat.com/errata/RHSA-2017-0013.html
http://rhn.redhat.com/errata/RHSA-2017-0014.html
http://www.debian.org/security/2016/dsa-3691
http://www.openwall.com/lists/oss-security/2016/09/29/28
http://www.openwall.com/lists/oss-security/2016/10/05/15
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.securityfocus.com/bid/95334
https://bugs.ghostscript.com/show_bug.cgi?id=697169
https://ghostscript.com/doc/9.21/History9.htm
https://security.gentoo.org/glsa/201702-31
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=8abd22010eb4db0fb1b10e430d5f5d83e015ef70

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