PT-2011-3921 · Digium · Asterisk Business Edition+1

Published 2011-07-06 · Updated 2017-08-29 · CVE-2011-2535

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 1.4.41.1 Asterisk Open Source versions 1.6.2.x through 1.6.2.18.1 Asterisk Open Source versions 1.8.x through 1.8.4.3 Asterisk Business Edition C.3 through C.3.7.3

Description The issue allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted frame. This occurs because the chan iax2.c in the IAX2 channel driver accesses a memory address contained in an option control frame.

Recommendations For Asterisk Open Source versions 1.4.x through 1.4.41.1, update to version 1.4.41.1 or later. For Asterisk Open Source versions 1.6.2.x through 1.6.2.18.1, update to version 1.6.2.18.1 or later. For Asterisk Open Source versions 1.8.x through 1.8.4.3, update to version 1.8.4.3 or later. For Asterisk Business Edition C.3 through C.3.7.3, update to version C.3.7.3 or later.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2011-2535

DSA-2276-1

DSA-2276-2

Affected Products

Asterisk Business Edition

Asterisk Open Source

References · 17

• https://osv.dev/vulnerability/DEBIAN-CVE-2011-2535 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-2535 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-2535 · Security Note
• http://downloads.asterisk.org/pub/security/AST-2011-010.html · Vendor Advisory
• http://debian.org/security/2011/dsa-2276 · Vendor Advisory
• http://downloads.asterisk.org/pub/security/AST-2011-010-1.8.diff · Patch
• http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2011-2535 · Vendor Advisory
• http://secunia.com/advisories/44973 · Vendor Advisory
• http://secunia.com/advisories/45048 · Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/68205 · Note
• http://secunia.com/advisories/45239 · Note
• http://osvdb.org/73309 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2535 · Note
• http://securitytracker.com/id?1025708 · Note