Bug 2555564 (CVE-2026-112177)

Summary: CVE-2026-112177 ghostscript: Reintroduction of .charkeys -dSAFER bypass in RHEL 8
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: rhel-process-autobot, security-response-team, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Ghostscript as shipped with Red Hat Enterprise Linux 8. The correction for CVE-2019-14869 was omitted during the rebase from version 9.25 to 9.27, leaving privileged .forceput operations in the .charkeys procedure insufficiently protected. Processing a specially crafted PostScript file may allow an attacker to bypass -dSAFER restrictions and access files outside the permitted paths or execute commands with the permissions of the Ghostscript process.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-10-19 12:28:08 UTC
A flaw was found in Ghostscript as shipped with Red Hat Enterprise Linux 8. The fix for CVE-2019-14869 was omitted when the package was rebased from version 9.25 to 9.27, reintroducing three privileged .forceput calls in the .charkeys procedure in Resource/Init/gs_ttf.ps. Processing a specially crafted PostScript file may allow an attacker to bypass -dSAFER restrictions and access files outside the permitted paths or execute commands with the permissions of the Ghostscript process.

Comment 1 Jon Orris 2026-11-02 18:14:01 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:93978 https://access.redhat.com/errata/RHSA-2026:93978