Bug 1666636 (CVE-2019-6116)
| Summary: | CVE-2019-6116 ghostscript: subroutines within pseudo-operators must themselves be pseudo-operators (700317) | ||
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| Product: | [Other] Security Response | Reporter: | Cedric Buissart <cbuissar> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | apmukher, cww, deekej, kdudka, kent, mosvald, pravisha, security-response-team, twaugh, yozone, zdohnal |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | ghostscript 9.27 | Doc Type: | If docs needed, set a value |
| Doc Text: |
It was found that ghostscript could leak sensitive operators on the operand stack when a pseudo-operator pushes a subroutine. A specially crafted PostScript file could use this flaw to escape the -dSAFER protection in order to, for example, have access to the file system outside of the SAFER constraints.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-02-01 12:57:19 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1667442, 1667443, 1668888, 1668891, 1741040 | ||
| Bug Blocks: | 1666628 | ||
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Description
Cedric Buissart
2019-01-16 09:07:16 UTC
Mitigation: Please refer to the "Mitigation" section of CVE-2018-16509 : https://access.redhat.com/security/cve/cve-2018-16509 External References: https://bugs.ghostscript.com/show_bug.cgi?id=700317 Acknowledgments: Name: Tavis Ormandy (Google Project Zero) Created ghostscript tracking bugs for this issue: Affects: fedora-all [bug 1668888] This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:0229 https://access.redhat.com/errata/RHSA-2019:0229 Statement: Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Important, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. Upstream fixes : * http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=13b0a36f * http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=2db98f9c * http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=99f13091 * http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=59d8f4de The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days |