Description
The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash).
CVSS Metrics
- Vector
- AV:N/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- network
- Access Cmplx
- low
- Auth
- none
- Confidentiality
- none
- Integrity
- none
- Availability
- complete
- Weaknesses
- NVD-CWE-Other
Metadata
- Primary Vendor
- ASTERISK
- Published
- 4/26/2007
- Last Modified
- 4/9/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
asterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asteriskasterisk : asterisk
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