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Debian Security Advisory 2475-1

Debian Security Advisory 2475-1
Posted May 18, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2475-1 - 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.)

tags | advisory, denial of service
systems | linux, debian
advisories | CVE-2012-2333
SHA-256 | 66c8c21a9d5a67bd12535ff58d7285885abd5e746fc2188a45920751e9870d71

Debian Security Advisory 2475-1

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-2475-1 security@debian.org
http://www.debian.org/security/ Raphael Geissert
May 17, 2012 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : openssl
Vulnerability : integer underflow
Problem type : remote
Debian-specific: no
CVE ID : CVE-2012-2333

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/

Mailing list: debian-security-announce@lists.debian.org
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