CVE-2016-8610

Description

A denial of service flaw was found in OpenSSL 0.9.8, 1.0.1, 1.0.2 through 1.0.2h, and 1.1.0 in the way the TLS/SSL protocol defined processing of ALERT packets during a connection handshake. A remote attacker could use this flaw to make a TLS/SSL server consume an excessive amount of CPU and fail to accept connections from other clients.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gnutls28	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Not affected
	16.10 yakkety	Fixed 3.5.3-5ubuntu1.1
	16.04 LTS xenial	Fixed 3.4.10-4ubuntu1.2
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life
openssl098	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life
gnutls26	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed 2.12.23-12ubuntu2.7
	12.04 LTS precise	Fixed 2.12.14-5ubuntu3.13
openssl	19.04 disco	Fixed 1.0.2g-1ubuntu11
	18.10 cosmic	Fixed 1.0.2g-1ubuntu11
	18.04 LTS bionic	Fixed 1.0.2g-1ubuntu11
	17.10 artful	Fixed 1.0.2g-1ubuntu11
	17.04 zesty	Fixed 1.0.2g-1ubuntu11
	16.10 yakkety	Fixed 1.0.2g-1ubuntu9.1
	16.04 LTS xenial	Fixed 1.0.2g-1ubuntu4.6
	14.04 LTS trusty	Fixed 1.0.1f-1ubuntu2.22
	12.04 LTS precise	Fixed 1.0.1-4ubuntu5.39

Patch details

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

Package	Patch details
gnutls28	Upstream: 1ffb827 Upstream: 42a8bb3 Upstream: 648bf9b
openssl	Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=af58be768ebb690f78530f796e92b8ae5c9a4401 Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=22646a075e75991b4e8f5d67171e45a6aead5b48 Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=f1185392189641014dca94f3fe7834bccb5f4c16

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3183-1
GnuTLS vulnerabilities
1 February 2017

USN-3183-2
GnuTLS vulnerability
20 March 2017

USN-3181-1
OpenSSL vulnerabilities
31 January 2017

Cvss 3 Severity Score