VULNERABILITY INTELLIGENCE

CVE-2011-4063

CVSS score6.8 MEDIUM
EPSS probability2.38%
CISA KEVNot currently listed
Published2011-10-21
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:S/C:N/I:N/A:C

Description

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.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references