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patch: do_ed_script in pch.c does not block strings beginning with a ! character

🗓️ 06 Nov 2019 17:01:35Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 2 Views

Patch tool flaw lets exclamation strings bypass blocks and run shell commands, risking data confidentiality, integrity, and availability.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7.5ppc64patch0:2.7.1-11.el7_5patch-0:2.7.1-11.el7_5.ppc64.rpm
Red Hat Enterprise Linux7.5ppc64lepatch0:2.7.1-11.el7_5patch-0:2.7.1-11.el7_5.ppc64le.rpm
Red Hat Enterprise Linux7.5s390xpatch0:2.7.1-11.el7_5patch-0:2.7.1-11.el7_5.s390x.rpm
Red Hat Enterprise Linux7.5x86_64patch0:2.7.1-11.el7_5patch-0:2.7.1-11.el7_5.x86_64.rpm
Red Hat Enterprise Linux7.5ppc64patch-debuginfo0:2.7.1-11.el7_5patch-debuginfo-0:2.7.1-11.el7_5.ppc64.rpm
Red Hat Enterprise Linux7.5ppc64lepatch-debuginfo0:2.7.1-11.el7_5patch-debuginfo-0:2.7.1-11.el7_5.ppc64le.rpm
Red Hat Enterprise Linux7.5s390xpatch-debuginfo0:2.7.1-11.el7_5patch-debuginfo-0:2.7.1-11.el7_5.s390x.rpm
Red Hat Enterprise Linux7.5x86_64patch-debuginfo0:2.7.1-11.el7_5patch-debuginfo-0:2.7.1-11.el7_5.x86_64.rpm

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25 Jun 2026 10:54Current
5.7Medium risk
Vulners AI Score5.7
CVSS 37.8
CVSS 29.3
EPSS0.02706
2