CVE-2018-1100: zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute…

PriorityP339high7.8CVSS 3.1

AVLACLPRLUINSUCHIHAH

EPSS

0.54%

42.0th percentile

zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute arbitrary code in the context of another user.

Affected

19 ranges

Vendor	Product	Version range	Fixed in
canonical	ubuntu_linux	—	—
canonical	ubuntu_linux	—	—
canonical	ubuntu_linux	—	—
debian	zsh	< zsh 5.5-1 (bookworm)	zsh 5.5-1 (bookworm)
redhat	enterprise_linux_desktop	—	—
redhat	enterprise_linux_desktop	—	—
redhat	enterprise_linux_server	—	—
redhat	enterprise_linux_server	—	—
redhat	enterprise_linux_workstation	—	—
redhat	enterprise_linux_workstation	—	—
zsh	zsh	<= 5.4.2	—
zsh	zsh	—	—
zsh	zsh	>= 0 < 5.5-1	5.5-1
zsh	zsh	>= 0 < 5.5-1	5.5-1
zsh	zsh	>= 0 < 5.5-1	5.5-1
zsh	zsh	>= 0 < 5.5-1	5.5-1
zsh	zsh	>= 0 < 5.0.2-3ubuntu6.3	5.0.2-3ubuntu6.3
zsh	zsh	>= 0 < 5.1.1-1ubuntu2.3	5.1.1-1ubuntu2.3
zsh	zsh	>= 0 < 5.4.2-3ubuntu3.1	5.4.2-3ubuntu3.1

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

osv9.8CRITICAL

vendor_ubuntu9.8CRITICAL

vendor_debian7.8HIGH

vendor_redhat7.8HIGH

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