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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Red Hat Local Security Checks >> RHSA-2006-0661: openssl Vulnerability Assessment Details
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RHSA-2006-0661: openssl |
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Check for the version of the openssl packages Detailed Explanation for this Vulnerability Assessment Updated OpenSSL packages are now available to correct a security issue. This update has been rated as having important security impact by the Red Hat Security Response Team. The OpenSSL toolkit provides support for secure communications between machines. OpenSSL includes a certificate management tool and shared libraries which provide various cryptographic algorithms and protocols. Daniel Bleichenbacher recently described an attack on PKCS #1 v1.5 signatures. Where an RSA key with exponent 3 is used it may be possible for a possible hacker to forge a PKCS #1 v1.5 signature that would be incorrectly verified by implementations that do not check for excess data in the RSA exponentiation result of the signature. The Google Security Team discovered that OpenSSL is vulnerable to this attack. This issue affects applications that use OpenSSL to verify X.509 certificates as well as other uses of PKCS #1 v1.5. (CVE-2006-4339) This errata also resolves a problem where a customized ca-bundle.crt file was overwritten when the openssl package was upgraded. Users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. Note: After installing this update, users are advised to either restart all services that use OpenSSL or restart their system. Solution : http://rhn.redhat.com/errata/RHSA-2006-0661.html Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is Copyright (C) 2006 Tenable Network Security |
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