LIVE555 Media Server parseRTSPRequestString() denial of service

live555-rtsp-dos (38542)

Medium Risk

Description:

LIVE555 Media Server is vulnerable to a denial of service attack, caused by improper validation of user-supplied input by the parseRTSPRequestString() function. A remote attacker could send a small RTSP query to cause the server to crash.

*CVSS:

Base Score:	5
Access Vector:	Network
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Partial
Temporal Score:	4.1
Exploitability:	Proof-of-Concept
Remediation Level:	Temporary-Fix
Report Confidence:	Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of LIVE555 Media Server (2007.11.18 or later), available from the LIVE555 Web site. See References.

References:

• LIVE555 Web site: LIVE555 Media Server.
• Luigi Auriemma Advisory 18 Nov 2007: Crash in LIVE555 Media Server 2007.11.01.
• BID-26488: LIVE555 Media Server ParseRTSPRequestString Remote Denial Of Service Vulnerability
• CVE-2007-6036: The parseRTSPRequestString function in LIVE555 Media Server 2007.11.01 and earlier allows remote attackers to cause a denial of service (daemon crash) via a short RTSP query, which causes a negative number to be used during memory allocation.
• GLSA-200803-22: LIVE555 Media Server: Denial of Service
• SA27711: LIVE555 Media Server "parseRTSPRequestString()" Denial of Service
• VUPEN/ADV-2007-3939: LIVE555 Media Server parseRTSPRequestString() Denial of Service

Platforms Affected:

• Gentoo Linux
• Live Networks LIVE555 Media Server 2007.11.01

Reported:

Nov 18, 2007

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