Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2011-4096

Severity CVSS v4.0:
Pending analysis
Type:
CWE-399 Resource Management Errors
Publication date:
17/11/2011
Last modified:
11/04/2025

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.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* 3.1.15 (including)
cpe:2.3:a:squid-cache:squid:3.0:*:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:pre1:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:pre2:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:pre3:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:pre4:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:pre5:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:pre6:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:pre7:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:stable1:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:stable10:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:stable11:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:stable12:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:stable13:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0:*:stable14:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools