Arbitrary Command Execution via Crafted Patch File in GNU Patch and FreeBSD Patch

CVE-2015-1418 · HIGH Severity

AV:N/AC:M/AU:N/C:C/I:C/A:C

The do_ed_script function in pch.c in GNU patch through 2.7.6, and patch in FreeBSD 10.1 before 10.1-RELEASE-p17, 10.2 before 10.2-BETA2-p3, 10.2-RC1 before 10.2-RC1-p2, and 0.2-RC2 before 10.2-RC2-p1, allows remote attackers to execute arbitrary commands via a crafted patch file, because a '!' character can be passed to the ed program.

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