CVE-2016-2194

Publication date 13 May 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The ressol function in Botan before 1.10.11 and 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (infinite loop) via unspecified input to the OS2ECP function, related to a composite modulus.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
botan1.10	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Ignored end of life
	14.04 LTS trusty	Fixed 1.10.5-1+deb7u1ubuntu0.14.04.1
	12.04 LTS precise	Ignored end of life

Notes

seth-arnold

"Introduced in 1.7.15, fixed in 1.11.27 and 1.10.11"

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	7.5 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H