SB2018111415 - Multiple vulnerabilities in Squid

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Main Vulnerability Database SB2018111415

SB2018111415 - Multiple vulnerabilities in Squid

Published: November 14, 2018 Updated: November 15, 2018

Security Bulletin ID SB2018111415
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Cross-site scripting (CVE-ID: CVE-2018-19131)

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when processing a specially crafted X.509 certificate during HTTP(S) error page generation for certificate errors. A remote attacker can trick the victim to follow a specially specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


2) Memory leak (CVE-ID: CVE-2018-19132)

The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to memory leak when processing SNMP requests. A remote attacker can send a specially crafted SNMP request via the proxy server, trigger excessive consumption of memory resources on the system and denial of service conditions.

Remediation

Install update from vendor's website.

References