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Debian Openssl Moderate Integer Underflow DoS Advisory DSA-2475-1

debian
Calendar Grey May 17, 2012
Scroller Debian
Service Disruption in OpenSSL linked to improper management of Initialization Vectors. Update your OpenSSL libraries now.
It was discovered that openssl did not correctly handle explicit Initialization Vectors for CBC encryption modes, as used in TLS 1.1, 1.2, and DTLS
Topics%20covered

Topics Covered

security advisory moderate denial of service debian OpenSSL integer underflow

Summary

It was discovered that openssl did not correctly handle explicit
Initialization Vectors for CBC encryption modes, as used in TLS 1.1,
1.2, and DTLS. An incorrect calculation would lead to an integer
underflow and incorrect memory access, causing denial of service
(application crash.)

For the stable distribution (squeeze), this problem has been fixed in
version 0.9.8o-4squeeze13.

For the testing distribution (wheezy), and the unstable distribution
(sid), this problem has been fixed in version 1.0.1c-1.

We recommend that you upgrade your openssl packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/



Severity
moderate
Lowest
Low
Medium
High
Critical

Package: openssl
CVE ID: CVE-2012-2333

Topics%20covered

Topics Covered

security advisory moderate denial of service debian OpenSSL integer underflow

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