CVE-2016-7977

Name: CVE-2016-7977
Creator: NVD / NIST
Published: 2017-05-23T04:29:01.523+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.57%

Last modified Jun 17, 2026

CVE-2016-7977 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.57% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.57%

90.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Artifex	Ghostscript	<= 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/2016/09/29/28Mailing List, Patch
http://www.openwall.com/lists/oss-security/2016/10/05/15Mailing List, Patch
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.securityfocus.com/bid/95334Third Party Advisory, VDB Entry
https://bugs.ghostscript.com/show_bug.cgi?id=697169Issue Tracking, Patch
https://ghostscript.com/doc/9.21/History9.htmRelease Notes
https://security.gentoo.org/glsa/201702-31
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/2016/09/29/28Mailing List, Patch
http://www.openwall.com/lists/oss-security/2016/10/05/15Mailing List, Patch
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.securityfocus.com/bid/95334Third Party Advisory, VDB Entry
https://bugs.ghostscript.com/show_bug.cgi?id=697169Issue Tracking, Patch
https://ghostscript.com/doc/9.21/History9.htmRelease Notes
https://security.gentoo.org/glsa/201702-31

Timeline

Published: May 23, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-7977?

How severe is CVE-2016-7977?

Severity scoring for CVE-2016-7977 is pending analysis. The EPSS model estimates a 4.57% probability of exploitation in the next 30 days.

How do I fix CVE-2016-7977?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-7977?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST