CVE-2011-1175

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-03-31 · updated 2026-06-16

Description

tcptls.c in the TCP/TLS server in Asterisk Open Source 1.6.1.x before 1.6.1.23, 1.6.2.x before 1.6.2.17.1, and 1.8.x before 1.8.3.1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by establishing many short TCP sessions to services that use a certain TLS API.

Affected products

Digium Asterisk: 1.6.1, 1.6.1-beta1, 1.6.1-beta2, 1.6.1-beta3, 1.6.1-beta4, 1.6.1-rc1 (+88)

References

http://downloads.asterisk.org/pub/security/AST-2011-004.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056945.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057156.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057163.html
http://openwall.com/lists/oss-security/2011/03/17/5
http://openwall.com/lists/oss-security/2011/03/21/12
http://securitytracker.com/id?1025224
http://www.debian.org/security/2011/dsa-2225
http://www.securityfocus.com/bid/46898
http://www.vupen.com/english/advisories/2011/0686
http://www.vupen.com/english/advisories/2011/0790
https://bugzilla.redhat.com/show_bug.cgi?id=688678

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