rdesktop process_redirect_pdu function buffer overflow

rdesktop-processredirectpdu-bo (42275) The risk level is classified as HighHigh Risk

Description:

rdesktop is vulnerable to a BSS-based buffer overflow, caused by improper bounds checking by the process_redirect_pdu function. By persuading a victim to connect to a malicious RDP server, a remote attacker could overflow a buffer and execute arbitrary code on the system with the privileges of the victim or cause the application to crash.

*CVSS:

Base Score: 5.8
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 4.8
  Exploitability: Functional
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of rdesktop (CVS revision 1.102 of rdp.c or later), available from the SourceForge.net Repository. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • iDefense Labs PUBLIC ADVISORY: 05.07.08: Multiple Vendor rdesktop process_redirect_pdu() BSS Overflow Vulnerability.
  • rdesktop Web site: rdesktop: A Remote Desktop Protocol Client.
  • SourceForge.net Repository: [rdesktop] Annotation of /rdesktop/rdp.c:.
  • Sun Alert ID: 240708: Multiple Security Vulnerabilities in rdesktop may lead to Execution of Arbitrary Code or Denial of Service (DOS).
  • ASA-2008-360: Multiple Security Vulnerabilities in rdesktop may lead to Execution of Arbitrary Code or Denial of Service (DOS) (Sun 240708)
  • BID-29097: rdesktop Multiple Remote Memory Corruption Vulnerabilities
  • CVE-2008-1802: Buffer overflow in the process_redirect_pdu (rdp.c) function in rdesktop 1.5.0 allows remote attackers to execute arbitrary code via a Remote Desktop Protocol (RDP) redirect request with modified length fields.
  • DSA-1573: rdesktop -- several vulnerabilities
  • GLSA-200806-04: rdesktop: Multiple vulnerabilities
  • MDVSA-2008:101: Updated rdesktop packages fix vulnerabilities
  • OSVDB ID: 44944: rdesktop Redirect Request process_redirect_pdu() Function BSS Section Overflow
  • SA30118: rdesktop Multiple Vulnerabilities
  • SECTRACK ID: 1019991: rdesktop Buffer Overflow in process_redirect_pdu() Lets Remote Users Execute Arbitrary Code
  • SUSE-SA:2008:041: openwsman
  • USN-646-1: rdesktop vulnerabilities

Platforms Affected:

  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 7.04
  • Canonical Ubuntu 7.10
  • Canonical Ubuntu 8.04 LTS
  • Debian Debian Linux 4.0
  • Gentoo Linux
  • MandrakeSoft Mandrake Linux 2007.1 X86_64
  • MandrakeSoft Mandrake Linux 2007.1
  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • MandrakeSoft Mandrake Linux 2008.0
  • MandrakeSoft Mandrake Linux 2008.1 X86_64
  • MandrakeSoft Mandrake Linux 2008.1
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • Novell OpenSUSE 10.3
  • Novell OpenSUSE 11.0
  • rdesktop rdesktop 1.5.0
  • Sun OpenSolaris 2008.5 SPARC
  • Sun OpenSolaris 2008.5 x86

Reported:

May 07, 2008

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