CVE-2016-0705

Publication date 22 February 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Double free vulnerability in the dsa_priv_decode function in crypto/dsa/dsa_ameth.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a malformed DSA private key.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openssl	16.04 LTS xenial	Fixed 1.0.2g-1ubuntu2
	15.10 wily	Fixed 1.0.2d-0ubuntu1.4
	14.04 LTS trusty	Fixed 1.0.1f-1ubuntu2.18
	12.04 LTS precise	Fixed 1.0.1-4ubuntu5.35
openssl098	16.04 LTS xenial	Not in release
	15.10 wily	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Patch details

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

Package	Patch details
openssl	Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=6c88c71b4e4825c7bc0489306d062d017634eb88 Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=ccb2a614074ee15c0fbbb9dd49e3cd258d68380a

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-2914-1
OpenSSL vulnerabilities
1 March 2016