Improper Input Validation Affecting asterisk package, versions [,1.4.41.1)[1.6.2.0,1.6.2.18)[1.8.4.0,1.8.4.3)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
4.61% (91st percentile)

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  • Snyk IDSNYK-UNMANAGED-ASTERISK-2371562
  • published26 Jan 2022
  • disclosed6 Jul 2011
  • creditUnknown

Introduced: 6 Jul 2011

CVE-2011-2535  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade asterisk to version 1.4.41.1, 1.6.2.18, 1.8.4.3 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation chan_iax2.c in the IAX2 channel driver in Asterisk Open Source 1.4.x before 1.4.41.1, 1.6.2.x before 1.6.2.18.1, and 1.8.x before 1.8.4.3, and Asterisk Business Edition C.3 before C.3.7.3, accesses a memory address contained in an option control frame, which allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted frame.

CVSS Base Scores

version 3.1