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CVE-2012-3863

Published: Jul 9, 2012Updated: Apr 29, 2026 Sources: CVE List NVDCWE-399
NVD MITRE
4.0CVSSMEDIUM
EPSS Score
3.2%
Top 13.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Asterisk Business Edition C.3.x before C.3.7.5, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones does not properly handle a provisional response to a SIP reINVITE request, which allows remote authenticated users to cause a denial of service (RTP port exhaustion) via sessions that lack final responses.

CVSS Vector Breakdown

AV:NAC:LAu:SC:NI:NA:P
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:SAuthentication
Single
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:PAvailability
Partial
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Weaknesses

CWE-399

Affected Products

n/an/a
asterisk business editiondigiumCommunications
asteriskdigiumCommunications
asteriskedigiumCommunications
certified asteriskdigiumCommunications
digiumcommercialUSCommunicationsaka digium, asterisk

Exploitability

Official Patch Available

References

http://secunia.com/advisories/50687
secunia.com
http://secunia.com/advisories/50756
secunia.com
http://www.debian.org/security/2012/dsa-2550
debian.org
and 3 more references View all →

Timeline

Published
Jul 9, 2012
Last Updated
Apr 29, 2026

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