CVE-2011-0495: Buffer Overflow

First published: Thu Jan 20 2011(Updated: )

Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Digium Asterisknow	=1.5
Digium Asterisk	>=1.2.0<=1.2.40
Digium Asterisk	<c.3.6.2
Digium Asterisk	>=1.6.2.16<1.6.2.16.1
Digium Asterisk	>=1.4.39<1.4.39.1
Digium Asterisk	>=1.6.1<1.6.1.21
Digium Asterisk	>=1.4.0<1.4.38.1
Digium Asterisk	>=1.6.2<1.6.2.15.1
Digium Asterisk	>=1.8.2<1.8.2.2
Digium Asterisk	>=1.8.0<1.8.1.2
Fedoraproject Fedora	=13
Fedoraproject Fedora	=14
Debian Debian Linux	=6.0
Digium S800i Firmware	=1.2.0
Digium S800i

Remedy

http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff

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