CVE-2019-14869 Information

Description

A flaw was found in all versions of ghostscript 9.x before 9.50 where the .charkeys procedure where it did not properly secure its privileged calls enabling scripts to bypass -dSAFER restrictions. An attacker could abuse this flaw by creating a specially crafted PostScript file that could escalate privileges within the Ghostscript and access files outside of restricted areas or execute commands.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

http://jvn.jp/en/jp/JVN52486659/index.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00049.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00050.html http://www.openwall.com/lists/oss-security/2019/11/15/1 https://access.redhat.com/errata/RHSA-2020:0222 https://bugs.ghostscript.com/show_bug.cgi?id=701841 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14869 https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=485904772c5f https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2Q4E3OTDAJRSUCOBTDQO7Y5UTE2FFMLF/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HC4REO73BEJOJAU7NHFHJECAUAYJUE3H/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IX55AEDERTDFEZAROKZW64MZRPLINEGI/ https://seclists.org/bugtraq/2019/Nov/27

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8