CVE-2011-1507
Asterisk Open Source 1.4.x before 1.4.40.1, 1.6.1.x before 1.6.1.25, 1.6.2.x before 1.6.2.17.3, and 1.8.x before 1.8.3.3 and Asterisk Business Edition C.x.x before C.3.6.4 do not restrict the number of unauthenticated sessions to certain interfaces,…
Does this matter?
Lower severity and a low EPSS score (2.50%). Track it; it rarely justifies an emergency change on its own.
Description
Asterisk Open Source 1.4.x before 1.4.40.1, 1.6.1.x before 1.6.1.25, 1.6.2.x before 1.6.2.17.3, and 1.8.x before 1.8.3.3 and Asterisk Business Edition C.x.x before C.3.6.4 do not restrict the number of unauthenticated sessions to certain interfaces, which allows remote attackers to cause a denial of service (file descriptor exhaustion and disk space exhaustion) via a series of TCP connections.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 2.50% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- digium/asterisk
- Source
- cve@mitre.org
EPSS 2.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://downloads.digium.com/pub/security/AST-2011-005.htmlVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058922.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/059702.html
- http://secunia.com/advisories/44197Vendor Advisory
- http://secunia.com/advisories/44529
- http://securitytracker.com/id?1025432
- http://www.debian.org/security/2011/dsa-2225
- http://www.vupen.com/english/advisories/2011/1086Vendor Advisory
- http://www.vupen.com/english/advisories/2011/1107
- http://www.vupen.com/english/advisories/2011/1188
- https://bugzilla.redhat.com/show_bug.cgi?id=698916Patch
- http://downloads.digium.com/pub/security/AST-2011-005.htmlVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058922.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/059702.html
- http://secunia.com/advisories/44197Vendor Advisory
- http://secunia.com/advisories/44529
- http://securitytracker.com/id?1025432
- http://www.debian.org/security/2011/dsa-2225
- http://www.vupen.com/english/advisories/2011/1086Vendor Advisory
- http://www.vupen.com/english/advisories/2011/1107
- http://www.vupen.com/english/advisories/2011/1188
- https://bugzilla.redhat.com/show_bug.cgi?id=698916Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.