GLSA 201503-11: OpenSSL: Multiple vulnerabilities

http://security.gentoo.org/

Опасность:	средняя
Заголовок:	OpenSSL: Multiple vulnerabilities
Дата:	19.03.2015
Ошибки:	#543552
ID:	201503-11

Сводка

Multiple vulnerabilities have been found in OpenSSL that can result in either Denial of Service or information disclosure.

Назначение

OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general purpose cryptography library.

Уязвимые пакеты

Пакет	Уязвимый	Нетронутый	Архитектура(ы)
dev-libs/openssl	< 1.0.1l-r1	>= 1.0.1l-r1	All supported architectures

Описание

Multiple vulnerabilities have been found in OpenSSL. Please review the CVE identifiers and the upstream advisory referenced below for details:

RSA silently downgrades to EXPORT_RSA [Client] (Reclassified) (CVE-2015-0204)
Segmentation fault in ASN1_TYPE_cmp (CVE-2015-0286)
ASN.1 structure reuse memory corruption (CVE-2015-0287)
X509_to_X509_REQ NULL pointer deref (CVE-2015-0288)
PKCS7 NULL pointer dereferences (CVE-2015-0289)
Base64 decode (CVE-2015-0292)
DoS via reachable assert in SSLv2 servers (CVE-2015-0293)
Use After Free following d2i_ECPrivatekey error (CVE-2015-0209)

The following issues affect OpenSSL 1.0.2 only which is not part of the supported Gentoo stable tree:

OpenSSL 1.0.2 ClientHello sigalgs DoS (CVE-2015-0291)
Multiblock corrupted pointer (CVE-2015-0290)
Segmentation fault in DTLSv1_listen (CVE-2015-0207)
Segmentation fault for invalid PSS parameters (CVE-2015-0208)
Empty CKE with client auth and DHE (CVE-2015-1787)
Handshake with unseeded PRNG (CVE-2015-0285)

Воздействие

A remote attacker can utilize multiple vectors to cause Denial of Service or Information Disclosure.

Обход

There is no known workaround at this time.

Решение

All OpenSSL 1.0.1 users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.0.1l-r1"

All OpenSSL 0.9.8 users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.8z_p5-r1"

Packages which depend on the OpenSSL library need to be restarted for the upgrade to take effect. Some packages may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.

Ссылки

Наличие

Этот GLSA и любые обновления для нее доступны для просмотра на сайте Gentoo Security: http://security.gentoo.org/glsa/glsa-201503-11.xml

Опасения?

Безопасность является одной из главных задач Gentoo Linux и первостепенное значение обеспечить конфиденциальность и безопасность машин наших пользователей. Любые соображения безопасности должны быть адресованы security@gentoo.org или в качестве альтернативы, вы можете сообщить об ошибке на https://bugs.gentoo.org.