CVE-2016-8689

Publication date 15 February 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The read_Header function in archive_read_support_format_7zip.c in libarchive 3.2.1 allows remote attackers to cause a denial of service (out-of-bounds read) via multiple EmptyStream attributes in a header in a 7zip archive.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libarchive	16.10 yakkety	Fixed 3.2.1-2ubuntu0.1
	16.04 LTS xenial	Fixed 3.1.2-11ubuntu0.16.04.3
	14.04 LTS trusty	Fixed 3.1.2-7ubuntu2.4
	12.04 LTS precise	Fixed 3.0.3-6ubuntu1.4

Patch details

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

Package	Patch details
libarchive	Upstream: 7f17c79

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

Related Ubuntu Security Notices (USN)

USN-3225-1
libarchive vulnerabilities
9 March 2017