CVE-2011-4096

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.

Published Bysecalert@redhat.com

Published DateNov 17, 2011, 19:55

Weakness Type (CWE):CWE-399

CVSS Metrics

Base Score

Vector String

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

Base Severity

Version

2.0

Attack Vector (AV)

Attack Complexity (AC)

Privileges Required (PR)

User Interaction (UI)

Scope (S)

Confidentiality (C)

NONE

Integrity (I)

NONE

Availability (A)

PARTIAL

References

http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
http://secunia.com/advisories/46609
http://secunia.com/advisories/47459
http://www.mandriva.com/security/advisories?name=MDVSA-2011:193
http://www.openwall.com/lists/oss-security/2011/10/31/5
http://www.openwall.com/lists/oss-security/2011/11/01/3
http://www.redhat.com/support/errata/RHSA-2011-1791.html
http://www.securitytracker.com/id?1026265
http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html

Weakness Type (CWE):CWE-399

CVSS Metrics

Base Score

Vector String

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

Base Severity

Version

2.0

Attack Vector (AV)

Attack Complexity (AC)

Privileges Required (PR)

User Interaction (UI)

Scope (S)

Confidentiality (C)

NONE

Integrity (I)

NONE

Availability (A)

PARTIAL