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  1. #1
    Join Date
    Mar 2003
    Location
    California USA
    Posts
    13,294

    Updated OpenSSL packages fix vulnerabilities

    1. Topic:

    Updated OpenSSL packages that fix several remote denial of service
    vulnerabilities are now available.

    2. Relevant releases/architectures:

    Red Hat Linux 9 - i386, i686

    3. Problem description:

    OpenSSL is a toolkit that implements Secure Sockets Layer (SSL v2/v3) and
    Transport Layer Security (TLS v1) protocols as well as a full-strength
    general purpose cryptography library.

    Testing performed by the OpenSSL group using the Codenomicon TLS Test Tool
    uncovered a null-pointer assignment in the do_change_cipher_spec() function
    in OpenSSL 0.9.6c-0.9.6l and 0.9.7a-0.9.7c. A remote attacker could
    perform a carefully-crafted SSL/TLS handshake against a server that used
    the OpenSSL library in such a way as to cause OpenSSL to crash. Depending
    on the application this could lead to a denial of service. The Common
    Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
    CAN-2004-0079 to this issue.

    Stephen Henson discovered a flaw in the SSL/TLS handshaking code when using
    Kerberos ciphersuites in OpenSSL 0.9.7a-0.9.7c. A remote attacker could
    perform a carefully-crafted SSL/TLS handshake against a server configured
    to use Kerberos ciphersuites in such a way as to cause OpenSSL to crash.
    Most applications have no ability to use Kerberos ciphersuites and are
    therefore unaffected by this issue. The Common Vulnerabilities and
    Exposures project (cve.mitre.org) has assigned the name CAN-2004-0112 to
    this issue.

    Testing performed by the OpenSSL group using the Codenomicon TLS Test Tool
    uncovered a bug in older versions of OpenSSL 0.9.6 prior to 0.9.6d that can
    lead to a denial of service attack (infinite loop). The Common
    Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
    CAN-2004-0081 to this issue. This issue affects only the OpenSSL
    compatibility packages shipped with Red Hat Linux 9.

    These updated packages contain patches provided by the OpenSSL group that
    protect against these issues.

    NOTE: Because server applications are affected by this issue, users are
    advised to either restart all services using OpenSSL functionality or
    restart their system after installing these updated packages.



    Steven Ciaburri | Industry's Best Server Management - Rack911.com
    Software Auditing - 400+ Vulnerabilities Found - Quote @ https://www.RACK911Labs.com
    Fully Managed Dedicated Servers (Las Vegas, New York City, & Amsterdam) (AS62710)
    FreeBSD & Linux Server Management, Security Auditing, Server Optimization, PCI Compliance

  2. #2
    Join Date
    Oct 2003
    Location
    Hanoi
    Posts
    4,306
    Hi Steve,

    Sorry but how can I know the suitable version: SRPMS, i386 or i686?

    thanks

  3. #3
    Join Date
    Mar 2003
    Location
    California USA
    Posts
    13,294
    gate2vn,

    you can use

    up2date openssl
    aswell
    Steven Ciaburri | Industry's Best Server Management - Rack911.com
    Software Auditing - 400+ Vulnerabilities Found - Quote @ https://www.RACK911Labs.com
    Fully Managed Dedicated Servers (Las Vegas, New York City, & Amsterdam) (AS62710)
    FreeBSD & Linux Server Management, Security Auditing, Server Optimization, PCI Compliance

  4. #4
    Join Date
    Oct 2003
    Location
    Hanoi
    Posts
    4,306
    Steve, thanks for command. but is there any command helping me to know my release: SRPMS, i386 or i686?

  5. #5
    Join Date
    Jul 2003
    Location
    India
    Posts
    43
    Hello,

    uname -m

    will give you the machine hardware name. (like i686 or i386)

    if you are not able to find a suitable version (pre compiled binary) for your machine. Get the source (or SRPMS) and compile it in your machine.

  6. #6
    Join Date
    Oct 2003
    Location
    Hanoi
    Posts
    4,306
    thanks, psk

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