medium
5
CWE
310
Advisory Published
Updated

CVE-2011-4576

First published: Fri Jan 06 2012(Updated: )

The SSL 3.0 implementation in OpenSSL before 0.9.8s and 1.x before 1.0.0f does not properly initialize data structures for block cipher padding, which might allow remote attackers to obtain sensitive information by decrypting the padding data sent by an SSL peer.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
OpenSSL libcrypto=0.9.8b
OpenSSL libcrypto=0.9.7l
OpenSSL libcrypto=0.9.6i
OpenSSL libcrypto=0.9.8m
OpenSSL libcrypto=0.9.8c
OpenSSL libcrypto=0.9.7c
OpenSSL libcrypto=0.9.8n
OpenSSL libcrypto=0.9.8p
OpenSSL libcrypto=0.9.6d
OpenSSL libcrypto=0.9.1c
OpenSSL libcrypto=0.9.6
OpenSSL libcrypto=0.9.7j
OpenSSL libcrypto=0.9.6a
OpenSSL libcrypto=0.9.8e
OpenSSL libcrypto=0.9.6h-bogus
OpenSSL libcrypto=0.9.4
OpenSSL libcrypto=0.9.8g
OpenSSL libcrypto=0.9.8k
OpenSSL libcrypto=0.9.8d
OpenSSL libcrypto=0.9.5a
OpenSSL libcrypto=0.9.6f
OpenSSL libcrypto=0.9.8j
OpenSSL libcrypto=0.9.6l
OpenSSL libcrypto=0.9.7k
OpenSSL libcrypto=0.9.7g
OpenSSL libcrypto<=0.9.8r
OpenSSL libcrypto=0.9.6e
OpenSSL libcrypto=0.9.7d
OpenSSL libcrypto=0.9.8l
OpenSSL libcrypto=0.9.7
OpenSSL libcrypto=0.9.6b
OpenSSL libcrypto=0.9.7e
OpenSSL libcrypto=0.9.7b
OpenSSL libcrypto=0.9.6k
OpenSSL libcrypto=0.9.8a
OpenSSL libcrypto=0.9.6g
OpenSSL libcrypto=0.9.7m
OpenSSL libcrypto=0.9.6h
OpenSSL libcrypto=0.9.7i
OpenSSL libcrypto=0.9.7h
OpenSSL libcrypto=0.9.8o
OpenSSL libcrypto=0.9.8q
OpenSSL libcrypto=0.9.6j
OpenSSL libcrypto=0.9.8
OpenSSL libcrypto=0.9.7a
OpenSSL libcrypto=0.9.6c
OpenSSL libcrypto=0.9.6m
OpenSSL libcrypto=0.9.8i
OpenSSL libcrypto=0.9.8f
OpenSSL libcrypto=0.9.8h
OpenSSL libcrypto=0.9.2b
OpenSSL libcrypto=0.9.5
OpenSSL libcrypto=0.9.7f
OpenSSL libcrypto=1.0.0c
OpenSSL libcrypto=1.0.0-beta1
OpenSSL libcrypto=1.0.0-beta2
OpenSSL libcrypto=1.0.0-beta3
OpenSSL libcrypto=1.0.0d
OpenSSL libcrypto<=1.0.0e
OpenSSL libcrypto=1.0.0-beta4
OpenSSL libcrypto=1.0.0
OpenSSL libcrypto=1.0.0-beta5
OpenSSL libcrypto=1.0.0a
OpenSSL libcrypto=1.0.0b

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-4576?

    CVE-2011-4576 has been rated as a moderate severity vulnerability due to the potential for sensitive information disclosure.

  • How do I fix CVE-2011-4576?

    To fix CVE-2011-4576, upgrade to a version of OpenSSL that is not affected, specifically version 0.9.8s or later or 1.0.0f or later.

  • What are the affected versions in CVE-2011-4576?

    CVE-2011-4576 affects OpenSSL versions from 0.9.1c to 0.9.8r and 1.0.0-beta1 to 1.0.0e.

  • Can exploiting CVE-2011-4576 allow remote attacks?

    Yes, exploiting CVE-2011-4576 can allow remote attackers to gain access to sensitive information by decrypting padding data.

  • Is CVE-2011-4576 still a risk today?

    As of now, CVE-2011-4576 is a risk if legacy versions of OpenSSL are still in use, especially in sensitive applications.

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