Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-0495

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
20/01/2011
Last modified:
11/04/2025

Description

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.

Impact

Vector 2.0
AV:N/AC:M/Au:S/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.00 MEDIUM
Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): Single
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:digium:asterisk:*:*:*:*:business:*:*:* c.3.6.2 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 1.2.0 (including) 1.2.40 (including)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 1.4.0 (including) 1.4.38.1 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 1.4.39 (including) 1.4.39.1 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 1.6.1 (including) 1.6.1.21 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 1.6.2 (including) 1.6.2.15.1 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 1.6.2.16 (including) 1.6.2.16.1 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 1.8.0 (including) 1.8.1.2 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 1.8.2 (including) 1.8.2.2 (excluding)
cpe:2.3:a:digium:asterisknow:1.5:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:13:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:14:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:digium:s800i_firmware:1.2.0:*:*:*:*:*:*:*
cpe:2.3:h:digium:s800i:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools