CVE-2016-1983

Publication date 27 January 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The client_host function in parsers.c in Privoxy before 3.0.24 allows remote attackers to cause a denial of service (invalid read and crash) via an empty HTTP Host header.

From the Ubuntu Security Team

It was discovered that privoxy has out-of-bound read bug. An attacker could use this vulnerability to cause a denial of service (crash) or possibly execute arbitrary code.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
privoxy	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Ignored end of life
	15.04 vivid	Fixed 3.0.21-7+deb8u1build0.15.04.1
	14.04 LTS trusty	Fixed 3.0.21-7+debu1build0.14.04.1
	12.04 LTS precise	Ignored end of life

Patch details

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

Package	Patch details
privoxy	Upstream: http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/parsers.c?r1=1.302&r2=1.303

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