CVE-2015-8918

Publication date 20 September 2016

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

The archive_string_append function in archive_string.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (crash) via a crafted cab files, related to "overlapping memcpy."

Read the notes from the security team

Status

Package Ubuntu Release Status
libarchive 16.04 LTS xenial
Not affected
15.10 wily
Not affected
14.04 LTS trusty
Not affected
12.04 LTS precise
Not affected

Notes

mdeslaur

never affected a released version, introduced and fixed between 3.1.2 and 3.2.0. Introduced by: https://github.com/libarchive/libarchive/commit/cf8e67ffc8a2227b63fc6d3d1569b0214f160f54

Patch details

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

Package Patch details
libarchive

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Other references