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openSUSE-SU-2021:0476-1

Опубликовано: 25 мар. 2021
Источник: suse-cvrf

Описание

Security update for openssl-1_1

This update for openssl-1_1 fixes the security issue:

  • CVE-2021-3449: 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 but includes a signature_algorithms_cert extension, then a NULL pointer dereference will result, leading to a crash and a denial of service attack. OpenSSL TLS clients are not impacted by this issue. [bsc#1183852]

This update was imported from the SUSE:SLE-15-SP2:Update update project.

Список пакетов

openSUSE Leap 15.2
libopenssl-1_1-devel-1.1.1d-lp152.7.15.1
libopenssl-1_1-devel-32bit-1.1.1d-lp152.7.15.1
libopenssl1_1-1.1.1d-lp152.7.15.1
libopenssl1_1-32bit-1.1.1d-lp152.7.15.1
libopenssl1_1-hmac-1.1.1d-lp152.7.15.1
libopenssl1_1-hmac-32bit-1.1.1d-lp152.7.15.1
openssl-1_1-1.1.1d-lp152.7.15.1
openssl-1_1-doc-1.1.1d-lp152.7.15.1

Ссылки

Описание

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).

Затронутые продукты
openSUSE Leap 15.2:libopenssl-1_1-devel-1.1.1d-lp152.7.15.1
openSUSE Leap 15.2:libopenssl-1_1-devel-32bit-1.1.1d-lp152.7.15.1
openSUSE Leap 15.2:libopenssl1_1-1.1.1d-lp152.7.15.1
openSUSE Leap 15.2:libopenssl1_1-32bit-1.1.1d-lp152.7.15.1
Ссылки