CVE-2015-8916

Publication date 31 December 2015

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

bsdtar in libarchive before 3.2.0 returns a success code without filling the entry when the header is a "split file in multivolume RAR," which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted rar file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libarchive	16.04 LTS xenial	Fixed 3.1.2-11ubuntu0.16.04.2
	15.10 wily	Fixed 3.1.2-11ubuntu0.15.10.2
	14.04 LTS trusty	Fixed 3.1.2-7ubuntu2.3
	12.04 LTS precise	Not affected

Notes

tyhicks

Reproducer doesn't work on precise

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libarchive	Upstream: b2e2abb

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H