CVE-2014-9742

Publication date 13 May 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The Miller-Rabin primality check in Botan before 1.10.8 and 1.11.x before 1.11.9 improperly uses a single random base, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via a DH group.

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	Not affected
	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 1.8.3, fixed in 1.10.8 and 1.11.9"

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	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N