CVE-2010-1224
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.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- Weakness (CWE)
- CWE-264
- EPSS score
- 3.5% (89th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2010-1254)
- Published
- April 1, 2010
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2010-1254 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- digium / asterisk
- digium / asterisk
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and 13 more…
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(Patch)
- 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
- http://secunia.com/advisories/38752(Vendor Advisory)
- http://secunia.com/advisories/39096
- http://www.securityfocus.com/archive/1/509757/100/0/threaded
- http://www.securityfocus.com/bid/38424
- http://www.vupen.com/english/advisories/2010/0475(Vendor Advisory)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/56552
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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