CVE-2012-3863

no score yetEPSS 3.2%

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.

EPSS: 3.2% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-399
Published: 2012-07-09
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

digium:asterisk
digium:asterisk_business_edition
digium:asteriske
digium:certified_asterisk

References

http://downloads.asterisk.org/pub/security/AST-2012-010.html
http://secunia.com/advisories/50687
http://secunia.com/advisories/50756
http://www.debian.org/security/2012/dsa-2550
http://www.securityfocus.com/bid/54327

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