Mozilla Firefox SOCKS5 proxy denial of service

firefox-socks5-dos (52252) The risk level is classified as MediumMedium Risk

Description:

Mozilla Firefox is vulnerable to a denial of service, caused by an error when processing SOCKS5 proxy replies. A remote attacker could exploit this vulnerability via a DNS name longer than 15 characters to corrupt responses.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to MFSA 2009-38 for patch, upgrade or suggested workaround information. See References.

References:

  • MFSA 2009-38: Data corruption with SOCKS5 reply containing DNS name longer than 15 characters.
  • BID-35925: Mozilla Firefox SOCKS5 Proxy Response Denial of Service Vulnerability
  • CVE-2009-2470: Mozilla Firefox before 3.0.12, and 3.5.x before 3.5.2, allows remote SOCKS5 proxy servers to cause a denial of service (data stream corruption) via a long domain name in a reply.
  • MDVSA-2010:071: krb5
  • RHSA-2009-1162: Critical: firefox security update
  • RHSA-2009-1163: Critical: seamonkey security update
  • RHSA-2010-0153: Moderate: thunderbird security update
  • RHSA-2010-0154: Moderate: thunderbird security update
  • SECTRACK ID: 1022665: Mozilla Firefox SOCKS5 DNS Name Length Error Lets Remote Users Corrupt Data
  • VUPEN/ADV-2009-2142: Mozilla Firefox Code Execution and Security Bypass Vulnerabilities
  • VUPEN/ADV-2010-0650: Redhat Security Update Fixes Thunderbird Multiple Vulnerabilities

Platforms Affected:

  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • MandrakeSoft Mandrake Linux 2008.0
  • Mandriva Linux 2009.0 X86_64
  • Mandriva Linux 2009.0
  • Mandriva Linux 2009.1
  • Mandriva Linux 2009.1 X86_64
  • Mandriva Linux 2010
  • Mandriva Linux 2010 X86_64
  • Mozilla Firefox 3.0
  • Mozilla Firefox 3.0 Alpha
  • Mozilla Firefox 3.0 Beta1
  • Mozilla Firefox 3.0 Beta2
  • Mozilla Firefox 3.0 Beta5
  • Mozilla Firefox 3.0 Beta3
  • Mozilla Firefox 3.0 Beta4
  • Mozilla Firefox 3.0.1
  • Mozilla Firefox 3.0.10
  • Mozilla Firefox 3.0.2
  • Mozilla Firefox 3.0.3
  • Mozilla Firefox 3.0.4
  • Mozilla Firefox 3.0.5
  • Mozilla Firefox 3.0.6
  • Mozilla Firefox 3.0.7
  • Mozilla Firefox 3.0.8
  • Mozilla Firefox 3.0.9
  • Mozilla Firefox 3.1 Beta1
  • Mozilla Firefox 3.1 Beta2
  • Mozilla Firefox 3.1 Beta3
  • Mozilla Firefox 3.5
  • Mozilla Firefox 3.5.1
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4.8.z ES
  • RedHat Enterprise Linux 4.8.z AS
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5.3.z EUS
  • RedHat Enterprise Linux Long Life 5.3
  • RedHat Enterprise Linux Optional Productivity Applications 5 Server
  • RedHat RHEL Optional Productivity Applications 5.4.z EUS

Reported:

Aug 03, 2009

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