CVE-2016-10196

Publication date 31 December 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (segmentation fault) via vectors involving a long string in brackets in the ip_as_string argument.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	17.04 zesty	Fixed 53.0+build6-0ubuntu0.17.04.1
	16.10 yakkety	Fixed 53.0+build6-0ubuntu0.16.10.1
	16.04 LTS xenial	Fixed 53.0+build6-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 53.0+build6-0ubuntu0.14.04.1
	12.04 LTS precise	Ignored
libevent	17.04 zesty	Fixed 2.0.21-stable-3
	16.10 yakkety	Fixed 2.0.21-stable-2ubuntu0.16.10.1
	16.04 LTS xenial	Fixed 2.0.21-stable-2ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 2.0.21-stable-1ubuntu1.14.04.2
	12.04 LTS precise	Fixed 2.0.16-stable-1ubuntu0.2
thunderbird	17.04 zesty	Fixed 1:52.1.1+build1-0ubuntu0.17.04.1
	16.10 yakkety	Fixed 1:52.1.1+build1-0ubuntu0.16.10.1
	16.04 LTS xenial	Fixed 1:52.1.1+build1-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 1:52.1.1+build1-0ubuntu0.14.04.1

Patch details

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

Package	Patch details
libevent	Upstream: 329acc1

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2016-10196

Cvss 3 Severity Score

Description

Status

Patch details

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references