OpenSSL: Multiple vulnerabilities

OpenSSL: Multiple vulnerabilities Multiple vulnerabilities have been found in OpenSSL, allowing remote attackers to cause a Denial of Service or obtain sensitive information. openssl 2012-03-06 2015-06-06 397695 399365 remote 1.0.0g 0.9.8t 0.9.8u 0.9.8v 0.9.8w 0.9.8x 0.9.8y 0.9.8z_p1 0.9.8z_p2 0.9.8z_p3 0.9.8z_p4 0.9.8z_p5 0.9.8z_p6 0.9.8z_p7 0.9.8z_p8 0.9.8z_p9 0.9.8z_p10 0.9.8z_p11 0.9.8z_p12 0.9.8z_p13 0.9.8z_p14 0.9.8z_p15 1.0.0g

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.

Multiple vulnerabilities have been found in OpenSSL:

Timing differences for decryption are exposed by CBC mode encryption in OpenSSL’s implementation of DTLS (CVE-2011-4108).
A policy check failure can result in a double-free error when X509_V_FLAG_POLICY_CHECK is set (CVE-2011-4109).
Clients and servers using SSL 3.0 handshakes do not clear the block cipher padding, allowing a record to contain up to 15 bytes of uninitialized memory, which could include sensitive information (CVE-2011-4576).
Assertion errors can occur during the handling of malformed X.509 certificates when OpenSSL is built with RFC 3779 support (CVE-2011-4577).
A resource management error can occur when OpenSSL’s server gated cryptography (SGC) does not properly handle handshake restarts (CVE-2011-4619).
Invalid parameters in the GOST block cipher are not properly handled by the GOST ENGINE(CVE-2012-0027).
An incorrect fix for CVE-2011-4108 creates an unspecified vulnerability for DTLS applications using OpenSSL (CVE-2012-0050).

A remote attacker may be able to cause a Denial of Service or obtain sensitive information, including plaintext passwords.

There is no known workaround at this time.

All OpenSSL users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.0.0g"

CVE-2011-4108 CVE-2011-4109 CVE-2011-4576 CVE-2011-4577 CVE-2011-4619 CVE-2012-0027 CVE-2012-0050 ago ackle