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

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CVE-2016-2570

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
27/02/2016
Last modified:
12/04/2025

Description

The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a crafted XML document, related to esi/CustomParser.cc and esi/CustomParser.h.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
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:3.0:*:*:*:*:*:*:*
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:rc4:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0.stable1:*:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0.stable2:*:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0.stable3:*:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0.stable4:*:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0.stable5:*:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.0.stable6:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools