medium
4.3
CWE
476
Advisory Published
Updated

CVE-2006-4343: Null Pointer Dereference

First published: Thu Sep 28 2006(Updated: )

The get_server_hello function in the SSLv2 client code in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows remote servers to cause a denial of service (client crash) via unknown vectors that trigger a null pointer dereference.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
OpenSSL=0.9.8b
OpenSSL=0.9.8c
OpenSSL=0.9.7c
OpenSSL=0.9.7j
OpenSSL=0.9.7k
OpenSSL=0.9.7g
OpenSSL=0.9.7d
OpenSSL=0.9.7
OpenSSL=0.9.7e
OpenSSL=0.9.7b
OpenSSL=0.9.8a
OpenSSL=0.9.7i
OpenSSL=0.9.7h
OpenSSL=0.9.8
OpenSSL=0.9.7a
OpenSSL=0.9.7f
Debian=3.1
Ubuntu=5.04
Ubuntu=6.06
Ubuntu=5.10

Remedy

http://www.kb.cert.org/vuls/id/386964

Remedy

http://www.openssl.org/news/secadv_20060928.txt

Remedy

http://www.securityfocus.com/bid/20246

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2006-4343?

    CVE-2006-4343 is classified as a moderate severity vulnerability that can cause a denial of service through client crashes.

  • How do I fix CVE-2006-4343?

    To fix CVE-2006-4343, update your OpenSSL library to version 0.9.7l, 0.9.8d, or later.

  • Which versions of OpenSSL are affected by CVE-2006-4343?

    CVE-2006-4343 affects OpenSSL versions 0.9.7 before 0.9.7l and 0.9.8 before 0.9.8d.

  • What impact does CVE-2006-4343 have on systems?

    The primary impact of CVE-2006-4343 is the potential for remote servers to crash clients using vulnerable versions of OpenSSL.

  • Is CVE-2006-4343 specific to any operating system?

    CVE-2006-4343 affects OpenSSL libraries on various operating systems, including Debian and Ubuntu.

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