CVE-2008-5911

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-01-20 · updated 2026-06-16
Weakness: CWE-119

Description

Multiple buffer overflows in RealNetworks Helix Server and Helix Mobile Server 11.x before 11.1.8 and 12.x before 12.0.1 allow remote attackers to (1) cause a denial of service via three crafted RTSP SETUP commands, or execute arbitrary code via (2) an NTLM authentication request with malformed base64-encoded data, (3) an RTSP DESCRIBE command, or (4) a DataConvertBuffer request.

Affected products

RealNetworks Helix Server: 11.0, 12.0.0
RealNetworks Helix Server Mobile: 11.0, 12.0.0

References

http://docs.real.com/docs/security/SecurityUpdate121508HS.pdf
http://secunia.com/advisories/33360
http://www.securitytracker.com/id?1021498
http://www.securitytracker.com/id?1021499
http://www.securitytracker.com/id?1021500
http://www.securitytracker.com/id?1021501
http://www.vupen.com/english/advisories/2008/3521
http://docs.real.com/docs/security/SecurityUpdate121508HS.pdf
http://secunia.com/advisories/33360
http://www.securitytracker.com/id?1021498
http://www.securitytracker.com/id?1021499
http://www.securitytracker.com/id?1021500

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