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Mandriva Linux Security Advisory 2013-019
Posted Mar 8, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-019 - A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handled session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website. This could force the server to process an attacker's request as if authenticated using the victim's credentials. This update addresses this flaw by implementing the TLS Renegotiation Indication Extension, as defined in RFC 5746. The TLS implementation in GnuTLS before 2.12.23, 3.0.x before 3.0.28, and 3.1.x before 3.1.7 does not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169. The updated packages have been patched to correct these issues.

tags | advisory, remote, web, arbitrary, protocol
systems | linux, mandriva
advisories | CVE-2009-3555, CVE-2013-1619
SHA-256 | 0aa58a05023ecaae15a6d536a958775447e0d5df7c99b2a7e6c3cf316869b997

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