CVE-2016-9427

Publication date 11 December 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Integer overflow vulnerability in bdwgc before 2016-09-27 allows attackers to cause client of bdwgc denial of service (heap buffer overflow crash) and possibly execute arbitrary code via huge allocation.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libgc	16.10 yakkety	Fixed 1:7.4.2-8ubuntu0.1
	16.04 LTS xenial	Fixed 1:7.4.2-7.3ubuntu0.1
	14.04 LTS trusty	Fixed 1:7.2d-5ubuntu2.1
	12.04 LTS precise	Fixed 1:7.1-8ubuntu0.12.04.3

Patch details

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

Package	Patch details
libgc	Upstream: 0b68187 Upstream: 1f3c938 Upstream: 41a9ed4 Upstream: e273661 Upstream: 2ea6d85 Upstream: 949a753 Upstream: a230ee8

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-3197-1
libgc vulnerability
15 February 2017