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Last updated: 4/24/2014

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Vulnerability Summary for CVE-2011-1175

Original release date: 03/31/2011
Last revised: 08/23/2011
Source: US-CERT/NIST

Overview

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.

Description

Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/AU:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: MLIST
Name: [oss-security] 20110317 CVE request for Asterisk flaws
External Source: MLIST
Name: [oss-security] 20110321 Re: CVE request for Asterisk flaws
Type: Patch Information
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=688678
External Source: FEDORA
Name: FEDORA-2011-3958
Type: Patch Information
External Source: CONFIRM
Name: http://downloads.asterisk.org/pub/security/AST-2011-004.html
Type: Advisory; Patch Information
External Source: FEDORA
Name: FEDORA-2011-3945
External Source: VUPEN
Name: ADV-2011-0790
Type: Advisory
External Source: DEBIAN
Name: DSA-2225
External Source: FEDORA
Name: FEDORA-2011-3942
External Source: BID
Name: 46898
External Source: SECTRACK
Name: 1025224
External Source: XF
Name: asterisk-handletcptlsconnection-dos(66140)
External Source: VUPEN
Name: ADV-2011-0686
Type: Advisory

Vulnerable software and versions

Skip Navigation Links.
Collapse Configuration 1Configuration 1
Collapse OROR
* cpe:/a:digium:asterisk:1.6.2.16
* cpe:/a:digium:asterisk:1.6.2.0
* cpe:/a:digium:asterisk:1.6.2.0:rc2
* cpe:/a:digium:asterisk:1.6.2.0:rc3
* cpe:/a:digium:asterisk:1.6.2.0:rc4
* cpe:/a:digium:asterisk:1.6.2.0:rc5
* cpe:/a:digium:asterisk:1.6.2.0:rc6
* cpe:/a:digium:asterisk:1.6.2.16:rc1
* cpe:/a:digium:asterisk:1.6.2.0:rc7
* cpe:/a:digium:asterisk:1.6.2.0:rc8
* cpe:/a:digium:asterisk:1.6.2.15:rc1
* cpe:/a:digium:asterisk:1.6.2.1
* cpe:/a:digium:asterisk:1.6.2.1:rc1
* cpe:/a:digium:asterisk:1.6.2.2
* cpe:/a:digium:asterisk:1.6.2.3:rc2
* cpe:/a:digium:asterisk:1.6.2.4
* cpe:/a:digium:asterisk:1.6.2.6:rc2
* cpe:/a:digium:asterisk:1.6.2.6:rc1
* cpe:/a:digium:asterisk:1.6.2.6
* cpe:/a:digium:asterisk:1.6.2.5
* cpe:/a:digium:asterisk:1.6.2.16.1
* cpe:/a:digium:asterisk:1.6.2.17:rc1
* cpe:/a:digium:asterisk:1.6.2.17:rc2
* cpe:/a:digium:asterisk:1.6.2.17:rc3
* cpe:/a:digium:asterisk:1.6.2.17
Collapse Configuration 2Configuration 2
Collapse OROR
* cpe:/a:digium:asterisk:1.8.1.2
* cpe:/a:digium:asterisk:1.8.1.1
* cpe:/a:digium:asterisk:1.8.1
* cpe:/a:digium:asterisk:1.8.1:rc1
* cpe:/a:digium:asterisk:1.8.0:rc5
* cpe:/a:digium:asterisk:1.8.0:rc4
* cpe:/a:digium:asterisk:1.8.0:rc3
* cpe:/a:digium:asterisk:1.8.0:rc2
* cpe:/a:digium:asterisk:1.8.0:beta5
* cpe:/a:digium:asterisk:1.8.0:beta4
* cpe:/a:digium:asterisk:1.8.0:beta3
* cpe:/a:digium:asterisk:1.8.0:beta2
* cpe:/a:digium:asterisk:1.8.0:beta1
* cpe:/a:digium:asterisk:1.8.0
* cpe:/a:digium:asterisk:1.8.2.3
* cpe:/a:digium:asterisk:1.8.2.2
* cpe:/a:digium:asterisk:1.8.2.1
* cpe:/a:digium:asterisk:1.8.2
* cpe:/a:digium:asterisk:1.8.3:rc1
* cpe:/a:digium:asterisk:1.8.3:rc2
* cpe:/a:digium:asterisk:1.8.3:rc3
* cpe:/a:digium:asterisk:1.8.3
Collapse Configuration 3Configuration 3
Collapse OROR
* cpe:/a:digium:asterisk:1.6.1.22
* cpe:/a:digium:asterisk:1.6.1.21
* cpe:/a:digium:asterisk:1.6.1.20
* cpe:/a:digium:asterisk:1.6.1.20:rc2
* cpe:/a:digium:asterisk:1.6.1.20:rc1
* cpe:/a:digium:asterisk:1.6.1.19
* cpe:/a:digium:asterisk:1.6.1.19:rc3
* cpe:/a:digium:asterisk:1.6.1.19:rc2
* cpe:/a:digium:asterisk:1.6.1.19:rc1
* cpe:/a:digium:asterisk:1.6.1.0:rc5
* cpe:/a:digium:asterisk:1.6.1.1
* cpe:/a:digium:asterisk:1.6.1:beta4
* cpe:/a:digium:asterisk:1.6.1.10:rc1
* cpe:/a:digium:asterisk:1.6.1:rc1
* cpe:/a:digium:asterisk:1.6.1.10:rc2
* cpe:/a:digium:asterisk:1.6.1.2
* cpe:/a:digium:asterisk:1.6.1.3:rc1
* cpe:/a:digium:asterisk:1.6.1.4
* cpe:/a:digium:asterisk:1.6.1.5
* cpe:/a:digium:asterisk:1.6.1.5:rc1
* cpe:/a:digium:asterisk:1.6.1.6
* cpe:/a:digium:asterisk:1.6.1.7:rc1
* cpe:/a:digium:asterisk:1.6.1.7:rc2
* cpe:/a:digium:asterisk:1.6.1:beta2
* cpe:/a:digium:asterisk:1.6.1.8
* cpe:/a:digium:asterisk:1.6.1:beta3
* cpe:/a:digium:asterisk:1.6.1.9
* cpe:/a:digium:asterisk:1.6.1:beta1
* cpe:/a:digium:asterisk:1.6.1.17
* cpe:/a:digium:asterisk:1.6.1.18
* cpe:/a:digium:asterisk:1.6.1.18:rc1
* cpe:/a:digium:asterisk:1.6.1.18:rc2
* cpe:/a:digium:asterisk:1.6.1
* cpe:/a:digium:asterisk:1.6.1.12
* cpe:/a:digium:asterisk:1.6.1.11
* cpe:/a:digium:asterisk:1.6.1.10:rc3
* cpe:/a:digium:asterisk:1.6.1.13
* cpe:/a:digium:asterisk:1.6.1.10
* cpe:/a:digium:asterisk:1.6.1.12:rc1
* cpe:/a:digium:asterisk:1.6.1.0:rc4
* cpe:/a:digium:asterisk:1.6.1.14
* cpe:/a:digium:asterisk:1.6.1.0:rc3
* cpe:/a:digium:asterisk:1.6.1.13:rc1
* cpe:/a:digium:asterisk:1.6.1.0:rc2
* cpe:/a:digium:asterisk:1.6.1.16
* cpe:/a:digium:asterisk:1.6.1.0
* cpe:/a:digium:asterisk:1.6.1.15:rc2
* Denotes Vulnerable Software
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Technical Details

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