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