CVE-2011-2529

Medium

Description

chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted packet.

SeverityMedium
CVSS5.0
Exploit probability—
ProductDigium Asterisk
PublishedJul 6, 2011
First seenJul 6, 2011

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
digium asterisk1.6.0, 1.6.0.1, 1.6.0.2, 1.6.0.3, 1.6.0.4, 1.6.0.5, 1.6.0.6, 1.6.0.7, 1.6.0.8, 1.6.0.9, 1.6.0.10, 1.6.0.11, 1.6.0.12, 1.6.0.13, 1.6.0.14, 1.6.0.15, 1.6.0.16, 1.6.0.17, 1.6.0.18, 1.6.0.19, 1.6.0.20, 1.6.0.21, 1.6.0.22, 1.6.0.23, 1.6.0.24, 1.6.0.25, 1.6.0.26, 1.6.1, 1.6.1.0, 1.6.1.1, 1.6.1.2, 1.6.1.3, 1.6.1.4, 1.6.1.5, 1.6.1.6, 1.6.1.7, 1.6.1.8, 1.6.1.9, 1.6.1.10, 1.6.1.11, 1.6.1.12, 1.6.1.13, 1.6.1.14, 1.6.1.15, 1.6.1.16, 1.6.1.17, 1.6.1.18, 1.6.1.19, 1.6.1.20, 1.6.1.21, 1.6.1.22, 1.6.1.23, 1.6.1.24, 1.6.2.0, 1.6.2.1, 1.6.2.2, 1.6.2.3, 1.6.2.4, 1.6.2.5, 1.6.2.6, 1.6.2.15, 1.6.2.16, 1.6.2.16.1, 1.6.2.16.2, 1.6.2.17, 1.6.2.17.1, 1.6.2.17.2, 1.6.2.17.3, 1.6.2.18, 1.8.0, 1.8.1, 1.8.1.1, 1.8.1.2, 1.8.2, 1.8.2.1, 1.8.2.2, 1.8.2.3, 1.8.2.4, 1.8.3, 1.8.3.1, 1.8.3.2, 1.8.3.3, 1.8.4, 1.8.4.1, 1.8.4.2—

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