PT-2011-4843 · Squid+3 · Squid+4

Jan Lieskovsky · Publicado 2011-11-17 · Atualizado 2016-11-28 · CVE-2011-4096

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Média

Vetor base

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

Name of the Vulnerable Software and Affected Versions Squid versions prior to 3.1.16

Description The issue is related to the idnsGrokReply function, which does not properly free memory. This allows remote attackers to cause a denial of service by sending a DNS reply containing a CNAME record that references another CNAME record with an empty A record.

Recommendations For versions prior to 3.1.16, update to version 3.1.16 or later to resolve the issue. As a temporary workaround, consider restricting access to the DNS service to minimize the risk of exploitation.

Correção

DoS

Enumeração de Fraquezas

CWE-399

Identificadores relacionados

CESA-2011_1791

CVE-2011-4096

DSA-2381-1

RHSA-2011:1791

RHSA-2011_1791

SUSE-SU-2012_0129-1

SUSE-SU-2016:2089-1

Produtos afetados

Centos

Red Hat

Squid

Squid Cache

Suse

Referências · 74

• http://lists.suse.com/mailman/listinfo/sle-security-updates · Nota
• https://suse.com/security/cve/CVE-2016-4555 · Nota
• http://openwall.com/lists/oss-security/2011/11/01/3 · Nota
• https://suse.com/security/cve/CVE-2016-4051 · Nota
• https://suse.com/security/cve/CVE-2016-4553 · Nota
• http://squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html · Nota
• https://access.redhat.com/errata/RHSA-2011:1791 · Nota
• https://bugzilla.suse.com/976556 · Nota
• http://openwall.com/lists/oss-security/2011/10/31/5 · Nota
• https://suse.com/security/cve/CVE-2016-2572 · Nota
• https://suse.com/security/cve/CVE-2013-0188 · Nota
• https://suse.com/security/cve/CVE-2016-4054 · Nota
• https://suse.com/security/cve/CVE-2014-6270 · Nota
• https://bugzilla.suse.com/979010 · Nota
• https://lists.centos.org/pipermail/centos-announce/2011-December/067829.html · Nota