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CVE Record

CVE-2012-3812: Double free vulnerability in apps/app_voicemail.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x be...

Double free vulnerability in apps/app_voicemail.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones allows remote authenticated users to cause a denial of service (daemon crash) by establishing multiple voicemail sessions and accessing both the Urgent mailbox and the INBOX mailbox.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2012-3812 is a denial-of-service flaw in Asterisk voicemail handling. An authenticated remote voicemail user could crash the Asterisk daemon, disrupting voice services. The sources name fixed Asterisk versions, but provide no evidence of active exploitation. Exposure is most likely in organizations still running the listed legacy Asterisk branches with voicemail enabled and accessible to authenticated remote users. Internet exposure alone is not enough; the source describes authenticated voicemail access as required. Prioritize remediation where Asterisk supports business-critical calling, call centers, emergency workflows, or customer-facing voice services. Treat legacy exposed voicemail systems as the main concern. This is not evidenced as actively exploited in the supplied sources. Mitigation focus: Upgrade Asterisk Open Source 1.8.x to 1.8.13.1 or later.; Upgrade Asterisk Open Source 10.x to 10.5.2 or later.; Upgrade Certified Asterisk 1.8.11-certx to 1.8.11-cert4 or later..

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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
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
2Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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