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CVE-2017-20006

Published: 1 July 2021

UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from Unpack::Unpack5 and CmdExtract::ExtractCurrentFile).

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
unrar-nonfree
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Not vulnerable
(1:5.6.6-2build1)
groovy Not vulnerable

hirsute Not vulnerable

impish Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

mantic Not vulnerable

noble Not vulnerable

trusty Does not exist

upstream
Released (5.6.1.4)
xenial Needs triage

Patches:
upstream: https://github.com/aawc/unrar/commit/0ff832d31470471803b175cfff4e40c1b08ee779

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H