CVE-2010-1224

Description

main/acl.c in Asterisk Open Source 1.6.0.x before 1.6.0.25, 1.6.1.x before 1.6.1.17, and 1.6.2.x before 1.6.2.5 does not properly enforce remote host access controls when CIDR notation "/0" is used in permit= and deny= configuration rules, which causes an improper arithmetic shift and might allow remote attackers to bypass ACL rules and access services from unauthorized hosts.

Affected Platforms

Weakness Type

CWE-264

References

• http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.0.diff
• http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.1.diff
• http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.2.diff
• http://downloads.asterisk.org/pub/security/AST-2010-003.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html
• http://osvdb.org/62588