CVE-2011-2535
chan_iax2.c in the IAX2 channel driver in Asterisk Open Source 1.4.x before 1.4.41.1, 1.6.2.x before 1.6.2.18.1, and 1.8.x before 1.8.4.3, and Asterisk Business Edition C.3 before C.3.7.3, accesses a memory address contained in an option control frame, which allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted frame.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 4.6% (92th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-2518)
- Published
- July 6, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-2518 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- digium / asterisk
- digium / asterisk
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and 145 more…
References
- http://downloads.asterisk.org/pub/security/AST-2011-010-1.8.diff(Patch)
- http://downloads.asterisk.org/pub/security/AST-2011-010.html(Vendor Advisory)
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html
- http://secunia.com/advisories/44973(Vendor Advisory)
- http://secunia.com/advisories/45048(Vendor Advisory)
- http://secunia.com/advisories/45201
- http://secunia.com/advisories/45239
- http://securitytracker.com/id?1025708
- http://www.debian.org/security/2011/dsa-2276
- http://www.osvdb.org/73309
- http://www.securityfocus.com/bid/48431
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68205
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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