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

🗓️ 19 Sep 2019 04:11:16Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

The Ed patch flaw in pch.c allows exclamation strings, enabling shell commands through ed in patch.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64patch0:2.7.6-9.el8_0patch-0:2.7.6-9.el8_0.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepatch0:2.7.6-9.el8_0patch-0:2.7.6-9.el8_0.ppc64le.rpm
Red Hat Enterprise Linux8s390xpatch0:2.7.6-9.el8_0patch-0:2.7.6-9.el8_0.s390x.rpm
Red Hat Enterprise Linux8x86_64patch0:2.7.6-9.el8_0patch-0:2.7.6-9.el8_0.x86_64.rpm
Red Hat Enterprise Linux8aarch64patch-debuginfo0:2.7.6-9.el8_0patch-debuginfo-0:2.7.6-9.el8_0.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepatch-debuginfo0:2.7.6-9.el8_0patch-debuginfo-0:2.7.6-9.el8_0.ppc64le.rpm
Red Hat Enterprise Linux8s390xpatch-debuginfo0:2.7.6-9.el8_0patch-debuginfo-0:2.7.6-9.el8_0.s390x.rpm
Red Hat Enterprise Linux8x86_64patch-debuginfo0:2.7.6-9.el8_0patch-debuginfo-0:2.7.6-9.el8_0.x86_64.rpm
Red Hat Enterprise Linux8aarch64patch-debugsource0:2.7.6-9.el8_0patch-debugsource-0:2.7.6-9.el8_0.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepatch-debugsource0:2.7.6-9.el8_0patch-debugsource-0:2.7.6-9.el8_0.ppc64le.rpm
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21 Nov 2025 18:10Current
5.7Medium risk
Vulners AI Score5.7
CVSS 37.8
CVSS 29.3
EPSS0.02706
5