CVE-2017-14122

Publication date 3 September 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a stack-based buffer over-read in unrarlib.c, related to ExtrFile and stricomp.

From the Ubuntu Security Team

It was discovered that UnRAR mishandled specially crafted RAR archive. An attacker could use this vulnerability to cause a denial of service (crash) or possibly leak sensitive information.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
unrar-free	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Ignored end of life
	17.04 zesty	Ignored end of life
	16.04 LTS xenial	Fixed 1:0.0.1+cvs20140707-4~build0.16.04.1
	14.04 LTS trusty	Fixed 1:0.0.1+cvs20071127-2+deb7u1ubuntu0.1~esm1

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Severity score breakdown

Parameter	Value
Base score	9.1 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H