PT-2011-3916 · Digium · Asterisk Open Source

Published 2011-07-06 · Updated 2017-08-29 · CVE-2011-2529

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 1.6.x through 1.6.2.18.1 Asterisk Open Source versions 1.8.x through 1.8.4.3

Description The issue is related to the handling of '0' characters in SIP packets by the SIP channel driver. This can be exploited by remote attackers to cause a denial of service, resulting in memory corruption, or potentially have other unspecified impacts through crafted packets.

Recommendations For Asterisk Open Source versions 1.6.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.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2011-2529

DSA-2276-1

DSA-2276-2

Affected Products

Asterisk Open Source

References · 16

• https://osv.dev/vulnerability/CVE-2011-2529 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-2529 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2011-2529 · Vendor Advisory
• http://debian.org/security/2011/dsa-2276 · Vendor Advisory
• http://downloads.asterisk.org/pub/security/AST-2011-008.html · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html · Vendor Advisory
• http://downloads.asterisk.org/pub/security/AST-2011-008.diff · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-2529 · Vendor Advisory
• http://secunia.com/advisories/45048 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2529 · Note
• http://osvdb.org/73307 · Note
• http://securitytracker.com/id?1025706 · Note
• http://secunia.com/advisories/45239 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/68203 · Note
• http://secunia.com/advisories/45201 · Note