CVE-2013-5642: n/a vulnerability

CVE-2013-5642: The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10....

The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10.12.3, and 11.x before 11.5.1; Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.3-digiumphones allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an invalid SDP that defines a media description before the connection description in a SIP request.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 17:15 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2013-5642 is a remote denial-of-service flaw in Asterisk’s SIP handling. A malformed SIP request with invalid SDP can crash the Asterisk daemon, disrupting voice services. The sources name fixed Asterisk versions, but do not provide CVSS scoring or evidence of active exploitation. Exposure is most likely where affected Asterisk SIP services are reachable by untrusted networks or external SIP peers. Internal-only PBX deployments still carry risk if any user, trunk, or compromised host can send SIP requests to the server. Treat as a service-availability risk for voice infrastructure. Prioritize patching if Asterisk handles business-critical calling or receives SIP traffic from the internet, carriers, partners, or broad internal networks. Mitigation focus: Upgrade to the fixed Asterisk versions named in AST-2013-005.; Apply Debian or Mandriva vendor security packages where applicable.; Restrict SIP access to trusted peers and networks..

Prepared: Jun 14, 2026, 15:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 9, 2013, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://issues.asterisk.org/jira/browse/ASTERISK-22007CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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