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CVE-2018-18384

Published: 16 October 2018

Info-ZIP UnZip 6.0 has a buffer overflow in list.c, when a ZIP archive has a crafted relationship between the compressed-size value and the uncompressed-size value, because a buffer size is 10 and is supposed to be 12.

Notes

AuthorNote
mdeslaur
Debian fixed this with the 07-increase-size-of-cfactorstr patch
in 6.0-11 to fix debian bug #741384

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
unzip
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(6.0-21ubuntu1)
cosmic Not vulnerable

disco Not vulnerable

eoan Not vulnerable

focal Not vulnerable

trusty
Released (6.0-9ubuntu1.6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (6.0-11)
xenial Not vulnerable
(6.0-20ubuntu1)
groovy Not vulnerable

This vulnerability is mitigated in part by the use of -D_FORTIFY_SOURCE=2 in Ubuntu.

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H