CVE-2015-3197

Publication date 28 January 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

ssl/s2_srvr.c in OpenSSL 1.0.1 before 1.0.1r and 1.0.2 before 1.0.2f does not prevent use of disabled ciphers, which makes it easier for man-in-the-middle attackers to defeat cryptographic protection mechanisms by performing computations on SSLv2 traffic, related to the get_client_master_key and get_client_hello functions.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openssl	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.04 LTS trusty	Not affected
	12.04 LTS precise	Not affected
openssl098	15.10 wily	Not in release
	15.04 vivid	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Notes

mdeslaur

openssl in Ubuntu is compiled with no-ssl2

Severity score breakdown

Parameter	Value
Base score	5.9 · Medium
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N