GLSA 200502-04: Squid: Multiple vulnerabilities
| Severity: | normal |
| Title: | Squid: Multiple vulnerabilities |
| Date: | 02/02/2005 |
| Bugs: | , , , |
| ID: | 200502-04 |
Synopsis
Squid contains vulnerabilities in the code handling WCCP, HTTP and LDAP which could lead to Denial of Service, access control bypass, web cache and log poisoning.Background
Squid is a full-featured Web proxy cache designed to run on Unix systems. It supports proxying and caching of HTTP, FTP, and other protocols, as well as SSL support, cache hierarchies, transparent caching, access control lists and many other features.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| net-proxy/squid | < 2.5.7-r5 | >= 2.5.7-r5 | All supported architectures |
Description
Squid contains several vulnerabilities:
- Buffer overflow when handling WCCP recvfrom() (CAN-2005-0211).
- Loose checking of HTTP headers (CAN-2005-0173 and CAN-2005-0174).
- Incorrect handling of LDAP login names with spaces (CAN-2005-0175).
Impact
An attacker could exploit:
- the WCCP buffer overflow to cause Denial of Service.
- the HTTP header parsing vulnerabilities to inject arbitrary response data, potentially leading to content spoofing, web cache poisoning and other cross-site scripting or HTTP response splitting attacks.
- the LDAP issue to login with several variations of the same login name, leading to log poisoning.
Workaround
There is no known workaround at this time.
Resolution
All Squid users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-proxy/squid-2.5.7-r5"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.