CVE-2011-4096

N/A Unknown
Published: November 17, 2011 Modified: April 29, 2026
View on NVD

Description

The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12
Source: secalert@redhat.com
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
Source: secalert@redhat.com
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
Source: secalert@redhat.com
http://secunia.com/advisories/46609
Source: secalert@redhat.com
Vendor Advisory
http://secunia.com/advisories/47459
Source: secalert@redhat.com
http://www.mandriva.com/security/advisories?name=MDVSA-2011:193
Source: secalert@redhat.com
http://www.openwall.com/lists/oss-security/2011/10/31/5
Source: secalert@redhat.com
http://www.openwall.com/lists/oss-security/2011/11/01/3
Source: secalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2011-1791.html
Source: secalert@redhat.com
http://www.securitytracker.com/id?1026265
Source: secalert@redhat.com
http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html
Source: secalert@redhat.com
http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/46609
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/47459
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.mandriva.com/security/advisories?name=MDVSA-2011:193
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2011/10/31/5
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2011/11/01/3
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2011-1791.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id?1026265
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html
Source: af854a3a-2127-422b-91ae-364da2661108

22 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
38.3%
98th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-399

Affected Vendors

squid-cache

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