(RHSA-2019:0229) Important: ghostscript security and bug fix update

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es):

• ghostscript: use-after-free in copydevice handling (699661) (CVE-2018-16540)

• ghostscript: access bypass in psi/zdevice2.c (700153) (CVE-2018-19475)

• ghostscript: access bypass in psi/zicc.c (700169) (CVE-2018-19476)

• ghostscript: access bypass in psi/zfjbig2.c (700168) (CVE-2018-19477)

• ghostscript: subroutines within pseudo-operators must themselves be pseudo-operators (700317) (CVE-2019-6116)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Tavis Ormandy (Google Project Zero) for reporting CVE-2019-6116.

Bug Fix(es):

• Previously, ghostscript-9.07-31.el7_6.1 introduced a regression during the standard input reading, causing a “/invalidfileaccess in --run–” error. With this update, the regression has been fixed and the described error no longer occurs. (BZ#1665919)