Advisories and Patches

Apache HTTP Server Vulnerability Lists
Lists of security problems fixed in released versions of the Apache HTTP Server.
http://httpd.apache.org/security_report.html

AusCERT
Australian Computer Emergency Response Team. Advisories and tools.
http://www.auscert.org.au

Bugtraq
Independent source for security vulnerabilities, alerts, and threats.
http://www.securityfocus.com/archive/1

CERT Coordination Center
Studies Internet security vulnerabilities, provides incident response services to sites that have been the victims of attack, publishes a variety of security alerts, researches security and survivability in wide-area-networked computing, and develops information to improve site security.
http://www.cert.org/

Computer Incident Advisory Capability
CIAC publishes security bulletins and virus and hoax information. They provide computer security assistance to US Department of Energy (DOE) sites.
http://www.ciac.org/ciac/index.html

FrSIRT
Provides security advisories and real-time information about vulnerabilities, exploits, and threats. Also provides vulnerability management solutions.
http://www.frsirt.com/english/

ISS X-Force
Security alerts, advisories, and alert summaries from ISS.
http://xforce.iss.net/xforce/alerts

Linux Security Group
Security Advisories, Anti Hackers, programming books and related links.
http://www.linux-security.us/

Makesecure.com
Network security news, alerts and updates
http://www.makesecure.com

New Zealand Computer Emergency Readiness Team
Charitable trust established to improve the general information security posture of New Zealand society. Provides news, alerts, trends and statistics.
http://www.nzcert.org.nz/

Open Source Vulnerability Database
Searchable database of vulnerabilities. Offers data for download in XML format as well as via website. Details of how to submit new vulnerabilities, database schema and FAQ.
http://www.osvdb.org/

Oracle Security Center
Tips, tools, and technologies to keep Oracle products safe, secure, and patched.
http://www.oracle.com/technology/deploy/security/index.html

Patch Management Forum
Mailing list facilitates networking and information exchange related to patch management: announcements, testing, verification, operations processes, and vulnerabilities.
http://groups.yahoo.com/group/patchmgmt/

PatchAdvisor
Fee based patch alert service.
http://www.patchadvisor.com

PatchEasy
Software vendor for patch management.
http://www.patcheasy.com/

Patchlink Corporation
Software vendor for cross platform patch management.
http://www.patchlink.com

PatchManagement.org
Mailing list dedicated to the discussion of patch management.
http://www.patchmanagement.org/

SANS Internet Storm Center
Cooperative cyber threat monitor and alert system. Features daily handler diaries that summarize and analyze new threats and events.
http://isc.sans.org/

Secunia
Provides security advisories and information about patches, and provides software for vulnerability management.
http://secunia.com/

Secure Elements
Software vendor for IS technical control auditing, vulnerability management, and compliance. Provides advisories via XML and RSS, and fully supports OVAL and XCDDF XML standards for compliance and vulnerability functions.
http://www.secure-elements.com

Symantec DeepSight Threat Management System
Fee based security alert service that provides early warning of active attacks.
http://www.symantec.com/Products/enterprise?c=prodinfo&refId=988

CASESContact - tips and tricks
CASEScontact is an information security site providing tips and tricks for home users and SMEs (Small and Medium-Sized Enterprises) for FREE (How to protect against threats, vulnerabilities, privacy, encryption, viruses, worms, Trojans, spyware etc.). [RSS]
http://casescontact.org/rss_tips.php

SecurityFocus: Bugtraq
Full disclosure computer security vulnerabilities feed. [RSS]
http://www.securityfocus.com/rss/vulnerabilities.xml