CVE-2015-8931

Publication date 31 December 2015

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Multiple integer overflows in the (1) get_time_t_max and (2) get_time_t_min functions in archive_read_support_format_mtree.c in libarchive before 3.2.0 allow remote attackers to have unspecified impact via a crafted mtree file, which triggers undefined behavior.

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	Fixed 3.0.3-6ubuntu1.3

Patch details

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

Package	Patch details
libarchive	Upstream: b31744d Upstream: c0c52e9

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.8 · High

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	7.8 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-3033-1
libarchive vulnerabilities
14 July 2016

Other references

https://www.cve.org/CVERecord?id=CVE-2015-8931