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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Ghostscript ghostscript
all versions of ghostscript 9.x before 9.28affected
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14869 ↗
- http://www.openwall.com/lists/oss-security/2019/11/15/1 ↗
- https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=485904772c5f ↗
- https://bugs.ghostscript.com/show_bug.cgi?id=701841 ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IX55AEDERTDFEZAROKZW64MZRPLINEGI/ ↗
- https://seclists.org/bugtraq/2019/Nov/27 ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HC4REO73BEJOJAU7NHFHJECAUAYJUE3H/ ↗
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00049.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00050.html ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2Q4E3OTDAJRSUCOBTDQO7Y5UTE2FFMLF/ ↗
- https://access.redhat.com/errata/RHSA-2020:0222 ↗
- http://jvn.jp/en/jp/JVN52486659/index.html ↗