PT-2011-3174 · Digium · Asterisk Business Edition+1

Published 2011-04-27 · Updated 2011-09-07 · CVE-2011-1507

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Asterisk Open Source versions 1.4.x through 1.4.40.1 Asterisk Open Source versions 1.6.1.x through 1.6.1.25 Asterisk Open Source versions 1.6.2.x through 1.6.2.17.3 Asterisk Open Source versions 1.8.x through 1.8.3.3 Asterisk Business Edition C.x.x through C.3.6.4

Description The issue allows remote attackers to cause a denial of service, specifically file descriptor exhaustion and disk space exhaustion, by establishing a series of TCP connections. This is due to the lack of restriction on the number of unauthenticated sessions to certain interfaces.

Recommendations For Asterisk Open Source versions 1.4.x through 1.4.40.1, update to version 1.4.40.1 or later. For Asterisk Open Source versions 1.6.1.x through 1.6.1.25, update to version 1.6.1.25 or later. For Asterisk Open Source versions 1.6.2.x through 1.6.2.17.3, update to version 1.6.2.17.3 or later. For Asterisk Open Source versions 1.8.x through 1.8.3.3, update to version 1.8.3.3 or later. For Asterisk Business Edition C.x.x through C.3.6.4, update to version C.3.6.4 or later.

Fix

DoS

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2011-1507

DSA-2225-1

Affected Products

Asterisk Business Edition

Asterisk Open Source

References · 16

• https://security-tracker.debian.org/tracker/CVE-2011-1507 · Vendor Advisory
• http://secunia.com/advisories/44197 · Vendor Advisory
• http://debian.org/security/2011/dsa-2225 · Vendor Advisory
• http://vupen.com/english/advisories/2011/1086 · Vendor Advisory
• http://downloads.digium.com/pub/security/AST-2011-005.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-1507 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058922.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-1507 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2011-May/059702.html · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=698916 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2011-1507 · Security Note
• http://vupen.com/english/advisories/2011/1107 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1507 · Note
• http://vupen.com/english/advisories/2011/1188 · Note
• http://secunia.com/advisories/44529 · Note