GnuTLS record packet parsing denial of service

gnutls-record-parsing-dos (20328) The risk level is classified as LowLow Risk

Description:

Gnu Transport Layer Security Library (GnuTLS) is vulnerable to a denial of service attack caused by a unspecified vulnerability in the record packet parsing.

Platforms Affected:

  • Canonical, Ubuntu 4.10
  • Canonical, Ubuntu 5.04
  • Gentoo, Linux
  • GNU, GnuTLS 1.0.18
  • GNU, GnuTLS 1.0.19
  • GNU, GnuTLS 1.0.20
  • GNU, GnuTLS 1.0.21
  • GNU, GnuTLS 1.0.22
  • GNU, GnuTLS 1.0.23
  • GNU, GnuTLS 1.0.24
  • GNU, GnuTLS 1.2.0
  • GNU, GnuTLS 1.2.1
  • GNU, GnuTLS 1.2.2
  • MandrakeSoft, Mandrake Linux 10.1 X86_64
  • MandrakeSoft, Mandrake Linux 10.1
  • MandrakeSoft, Mandrake Linux LE2005 X86_64
  • MandrakeSoft, Mandrake Linux LE2005
  • RedHat, Enterprise Linux 4 WS
  • RedHat, Enterprise Linux 4 AS
  • RedHat, Enterprise Linux 4 ES
  • RedHat, Enterprise Linux 4 Desktop

Remedy:

Upgrade to the latest version of GnuTLS (1.0.25 or 1.2.3 or later), available from the GnuTLS Web page. See References.

For Ubuntu Linux:
Upgrade to the latest version of gnutls10 or gnutls11 (1.0.4-3ubuntu1.1 or 1.0.16-13ubuntu0.1 or later), as listed in USN-126-1. See References.

For Gentoo Linux:
Upgrade the latest version of GnuTLS (1.2.3 or later), as listed in Gentoo Linux Security Announcement GLSA 200505-04. See Reference.

For Red Hat Linux:
Refer to RHSA-2005:430-05 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Denial of Service

References:

  • GnuTLS Web page, The GNU Transport Layer Security Library at http://www.gnu.org/software/gnutls/.
  • BID-13477: GNUTLS Padding Denial of Service Vulnerability
  • CVE-2005-1431: The record packet parsing in GnuTLS 1.2 before 1.2.3 and 1.0 before 1.0.25 allows remote attackers to cause a denial of service, possibly related to padding bytes in gnutils_cipher.c.
  • GLSA-200505-04: GnuTLS: Denial of Service vulnerability
  • MDKSA-2005:084: Updated gnutls packages fix vulnerabilities
  • OSVDB ID: 16054: GnuTLS Record Packet Parsing Unspecified DoS
  • RHSA-2005-430: gnutls security update
  • SA15193: GnuTLS Record Packet Parsing Denial of Service Vulnerability
  • SECTRACK ID: 1013861: GnuTLS Padding Validation Error Lets Remote Users Deny Service
  • USN-126-1: GNU TLS library vulnerability

Reported:

May 02, 2005

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