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CVE-2016-8610

Published: 24 October 2016

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.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
gnutls28
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
artful Not vulnerable
(3.5.6-4ubuntu2)
bionic Not vulnerable
(3.5.6-4ubuntu2)
cosmic Not vulnerable
(3.5.6-4ubuntu2)
trusty Does not exist
(trusty was needed)
upstream Needs triage

xenial
Released (3.4.10-4ubuntu1.2)
yakkety
Released (3.5.3-5ubuntu1.1)
zesty Not vulnerable
(3.5.6-4ubuntu2)
disco Not vulnerable
(3.5.6-4ubuntu2)
Patches:
upstream: https://gitlab.com/gnutls/gnutls/commit/1ffb827e45721ef56982d0ffd5c5de52376c428e
upstream: https://gitlab.com/gnutls/gnutls/commit/42a8bb3bdad73f13425ae18a41addbbc04496101 (bp)
upstream: https://gitlab.com/gnutls/gnutls/commit/648bf9b00e1cbf45c6d05fab07e91fad97e6926d (3.3)



openssl098
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was needed)
upstream Needs triage

xenial Does not exist

yakkety Does not exist

zesty Does not exist

gnutls26
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise
Released (2.12.14-5ubuntu3.13)
trusty
Released (2.12.23-12ubuntu2.6)
upstream Needs triage

xenial Does not exist

yakkety Does not exist

zesty Does not exist

openssl
Launchpad, Ubuntu, Debian
artful
Released (1.0.2g-1ubuntu11)
bionic
Released (1.0.2g-1ubuntu11)
cosmic
Released (1.0.2g-1ubuntu11)
disco
Released (1.0.2g-1ubuntu11)
precise
Released (1.0.1-4ubuntu5.39)
trusty
Released (1.0.1f-1ubuntu2.22)
upstream Needs triage

xenial
Released (1.0.2g-1ubuntu4.6)
yakkety
Released (1.0.2g-1ubuntu9.1)
zesty
Released (1.0.2g-1ubuntu11)
Patches:



upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=af58be768ebb690f78530f796e92b8ae5c9a4401 (master)
upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=22646a075e75991b4e8f5d67171e45a6aead5b48 (1.0.2)
upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=f1185392189641014dca94f3fe7834bccb5f4c16 (related)

Severity score breakdown

Parameter Value
Base score 7.5
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