critical
9.3
CWE
287
Advisory Published
Updated

CVE-2008-1949

First published: Wed May 21 2008(Updated: )

The _gnutls_recv_client_kx_message function in lib/gnutls_kx.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 continues to process Client Hello messages within a TLS message after one has already been processed, which allows remote attackers to cause a denial of service (NULL dereference and crash) via a TLS message containing multiple Client Hello messages, aka GNUTLS-SA-2008-1-2.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
GnuTLS=2.3.5
GnuTLS=1.6.0
GnuTLS=2.0.0
GnuTLS=1.5.0
GnuTLS=1.2.8
GnuTLS=1.1.14
GnuTLS=2.3.4
GnuTLS=1.7.3
GnuTLS=1.4.1
GnuTLS=1.4.3
GnuTLS=1.2.11
GnuTLS=1.1.21
GnuTLS=1.7.5
GnuTLS=1.7.11
GnuTLS=1.0.20
GnuTLS=1.2.5
GnuTLS=2.2.4
GnuTLS=1.2.4
GnuTLS=1.3.1
GnuTLS=1.0.24
GnuTLS=1.7.15
GnuTLS=1.6.1
GnuTLS=1.0.21
GnuTLS=1.4.2
GnuTLS=1.7.8
GnuTLS=1.7.0
GnuTLS=2.1.0
GnuTLS=2.3.1
GnuTLS=2.2.5
GnuTLS=2.1.1
GnuTLS=2.3.8
GnuTLS=1.7.18
GnuTLS=1.1.20
GnuTLS=2.1.7
GnuTLS=2.1.4
GnuTLS=1.2.10
GnuTLS=1.5.3
GnuTLS=1.1.22
GnuTLS=1.6.3
GnuTLS=2.1.6
GnuTLS=1.4.5
GnuTLS=1.5.1
GnuTLS=1.4.0
GnuTLS=1.7.4
GnuTLS=1.7.13
GnuTLS=2.3.2
GnuTLS=2.3.9
GnuTLS=2.2.2
GnuTLS=2.2.0
GnuTLS=2.3.11
GnuTLS=1.3.4
GnuTLS=1.0.19
GnuTLS=1.7.2
GnuTLS=1.2.1
GnuTLS=1.1.19
GnuTLS=2.0.4
GnuTLS=1.1.18
GnuTLS=1.5.4
GnuTLS=1.7.9
GnuTLS=2.1.3
GnuTLS=1.7.10
GnuTLS=1.1.13
GnuTLS=2.3.7
GnuTLS=2.0.3
GnuTLS=1.2.2
GnuTLS=1.7.19
GnuTLS=1.5.5
GnuTLS=1.2.0
GnuTLS=1.0.18
GnuTLS=1.2.7
GnuTLS=1.3.2
GnuTLS=1.0.25
GnuTLS=1.1.15
GnuTLS=2.1.2
GnuTLS=1.0.23
GnuTLS=1.3.0
GnuTLS=1.3.5
GnuTLS=1.7.14
GnuTLS=1.1.23
GnuTLS=1.2.3
GnuTLS=1.2.6
GnuTLS=2.3.6
GnuTLS=1.2.9
GnuTLS=1.7.17
GnuTLS=2.3.3
GnuTLS=2.1.8
GnuTLS=1.7.7
GnuTLS=2.0.1
GnuTLS=1.7.6
GnuTLS=2.2.1
GnuTLS=2.1.5
GnuTLS=1.7.1
GnuTLS=1.5.2
GnuTLS=1.7.16
GnuTLS=1.7.12
GnuTLS=1.1.16
GnuTLS=2.3.10
GnuTLS=1.0.22
GnuTLS=2.0.2
GnuTLS=2.3.0
GnuTLS=1.6.2
GnuTLS=2.2.3
GnuTLS=1.4.4
GnuTLS=1.1.17
GnuTLS=1.3.3

Remedy

http://www.securityfocus.com/bid/29292

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2008-1949?

    CVE-2008-1949 has a severity rating that indicates it can lead to a denial of service due to NULL dereference.

  • How do I fix CVE-2008-1949?

    To fix CVE-2008-1949, upgrade to GnuTLS version 2.2.4 or later.

  • What does CVE-2008-1949 affect?

    CVE-2008-1949 affects multiple versions of GnuTLS prior to version 2.2.4.

  • What is the potential impact of CVE-2008-1949?

    The potential impact of CVE-2008-1949 includes causing a denial of service through the improper handling of Client Hello messages.

  • Is CVE-2008-1949 easy to exploit?

    Yes, CVE-2008-1949 can be exploited remotely by sending crafted TLS messages.

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