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CVE-2021-3449

Published: 25 March 2021

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

Notes

AuthorNote
mdeslaur
does not affect 1.0.2
edk2 doesn't implement a server, so not vulnerable to this issue
Priority

High

CVSS 3 base score: 5.9

Status

Package Release Status
edk2
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Not vulnerable

groovy Not vulnerable

hirsute Not vulnerable

impish Not vulnerable

jammy Not vulnerable

precise Does not exist

trusty Does not exist

upstream Not vulnerable

xenial Not vulnerable

nodejs
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(uses system openssl1.0)
focal Not vulnerable
(uses system openssl1.1)
groovy Not vulnerable
(uses system openssl1.1)
hirsute Not vulnerable
(uses system openssl1.1)
impish Not vulnerable
(uses system openssl1.1)
jammy Not vulnerable
(uses system openssl1.1)
precise Does not exist

trusty Not vulnerable
(uses system openssl)
upstream Needs triage

xenial Not vulnerable
(uses system openssl)
openssl
Launchpad, Ubuntu, Debian
bionic
Released (1.1.1-1ubuntu2.1~18.04.9)
focal
Released (1.1.1f-1ubuntu2.3)
groovy
Released (1.1.1f-1ubuntu4.3)
hirsute
Released (1.1.1j-1ubuntu3)
impish
Released (1.1.1j-1ubuntu3)
jammy
Released (1.1.1j-1ubuntu3)
precise Not vulnerable

trusty Not vulnerable

upstream Needs triage

xenial Not vulnerable
(1.0.2g-1ubuntu4.19)
openssl1.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(1.0.2n-1ubuntu5.6)
focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

postgresql-10
Launchpad, Ubuntu, Debian
bionic
Released (10.18-0ubuntu0.18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

postgresql-12
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (12.8-0ubuntu0.20.04.1)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

postgresql-13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

hirsute
Released (13.4-0ubuntu0.21.04.1)
impish
Released (13.4-1)
jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

postgresql-9.1
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

postgresql-9.3
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Deferred
(2019-08-23)
upstream Needs triage

xenial Does not exist

postgresql-9.5
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Needs triage