Title: KPhone Malformed STUN Packet Denial Of Service Vulnerability
Severity: MODERATE
Description:
KPhone is a voice-over-internet phone implementation for Unix/Linux variants.
A denial of service vulnerability has been reported in KPhone. This issue may be triggered by a malformed SIP (Session Initiation Protocol) STUN message. This is due to insufficient validation of user-specified STUN packet attribute lengths, causing out of bounds memory to be referenced and a subsequent crash.
This issue exists in the sipclient.cpp source file. In particular, sending a packet that specifies an attribute length (attrLen) with a value greater than 8000 will cause this condition.
It is not known if this condition could be further exploited to execute arbitrary code, though it has been conjectured that it is not exploitable.
Affected Products:
- KPhone KPhone 2.0.0
- KPhone KPhone 2.1.0
- KPhone KPhone 2.11.0
- KPhone KPhone 3.0.0
- KPhone KPhone 3.1.0
- KPhone KPhone 3.11.0
- KPhone KPhone 3.12.0
- KPhone KPhone 3.13.0
- KPhone KPhone 3.14.0
- KPhone KPhone 4.0.1
References:
- KPhone: KPhone Homepage
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