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CVE Record

CVE-2011-4063: chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc...

chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize variables during request parsing, which allows remote authenticated users to cause a denial of service (daemon crash) via a malformed request.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw can let an authenticated remote SIP user crash vulnerable Asterisk services with a malformed request. The business impact is loss of voice service availability, not confirmed data theft or system takeover in the provided sources. Exposure is most likely where legacy Asterisk 1.8.x or early 10.x systems still accept authenticated SIP traffic. Internet-facing SIP services, PBXs, and VoIP gateways carry higher availability risk. Prioritize remediation for production voice systems running affected legacy Asterisk versions, especially if SIP authentication is reachable externally. Treat as an availability risk to phone operations. Mitigation focus: Upgrade Asterisk Open Source 1.8.x to 1.8.7.1 or later.; Avoid Asterisk 10.x builds earlier than 10.0.0-rc1.; Review Digium AST-2011-012 and package vendor guidance for supported fixes..

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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2Source links

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Affected products

Products and packages named in the record

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