CVE-2011-0495

Medium

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.

SeverityMedium
CVSS6.0
Exploit probability—
ProductDigium Asterisk
PublishedJan 20, 2011
First seenJan 20, 2011

How to fix

Update
  • digium asteriskc.3.6.2, 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, 1.8.2.2 or later

Affected products

ProductAffected versionsFixed in
digium asteriskv < c.3.6.2, 1.2.0 ≤ v ≤ 1.2.40, 1.4.0 ≤ v < 1.4.38.1, 1.4.39 ≤ v < 1.4.39.1, 1.6.1 ≤ v < 1.6.1.21, 1.6.2 ≤ v < 1.6.2.15.1, 1.6.2.16 ≤ v < 1.6.2.16.1, 1.8.0 ≤ v < 1.8.1.2, 1.8.2 ≤ v < 1.8.2.2c.3.6.2, 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, 1.8.2.2
digium asterisknow1.5—
fedoraproject fedora13, 14—
debian debian_linux6.0—
digium s800i_firmware1.2.0—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.