Null pointer dereference

2008-06-0419:32:00

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7 High

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.013 Low

EPSS

Percentile

85.7%

JSON

Asterisk Open Source 1.0.x and 1.2.x before 1.2.29 and Business Edition A.x.x and B.x.x before B.2.5.3, when pedantic parsing (aka pedanticsipchecking) is enabled, allows remote attackers to cause a denial of service (daemon crash) via a SIP INVITE message that lacks a From header, related to invocations of the ast_uri_decode function, and improper handling of (1) an empty const string and (2) a NULL pointer.

CPENameOperatorVersion
asterisk_business_editioneq2.5.198
asterisk_business_editioneq.2.20-b
asterisk_business_editioneq.2.31-b
asterisk_business_editioneq.2.50-b
asterisk_business_editioneq.2.33-b
asterisk_business_editioneq.1.32-b
asterisk_business_editioneq.1.33-b
asterisk_business_editioneq.2.34-b
asterisk_business_editioneq<= b2.5.2
asterisk_business_editioneq.2.21-b

Name	Operator	Version
asterisk_business_edition	eq	2.5.198
asterisk_business_edition	eq	.2.20-b
asterisk_business_edition	eq	.2.31-b
asterisk_business_edition	eq	.2.50-b
asterisk_business_edition	eq	.2.33-b
asterisk_business_edition	eq	.1.32-b
asterisk_business_edition	eq	.1.33-b
asterisk_business_edition	eq	.2.34-b
asterisk_business_edition	eq	<= b2.5.2
asterisk_business_edition	eq	.2.21-b