Stay Secure with the Latest Linux Advisories
Refine advisories
X Clear Filters
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Community Poll
What got you started with Linux?
Loading...
Explore Latest Linux Security advisories
We found -7 articles for you...
172
security advisorysecurity issuecriticalUbuntu 11.04 USN-1229-1 Critical: PostgreSQL Blowfish Flaw
PostgreSQL incorrectly handled blowfish passwords.. =========================================================================Ubuntu Security Notice USN-1229-1 October 13, 2011 postgresql-8.3, postgresql-8.4 vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 11.04 - Ubuntu 10.10 - Ubuntu 10.04 LTS - Ubuntu 8.04 LTS Summary: PostgreSQL incorrectly handled blowfish passwords. Software Description: - postgresql-8.4: Object-relational SQL database - postgresql-8.3: Object-relational SQL database Details: It was discovered that the blowfish algorithm in the pgcrypto module incorrectly handled certain 8-bit characters, resulting in the password hashes being easier to crack than expected. An attacker who could obtain the password hashes would be able to recover the plaintext with less effort. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 11.04: postgresql-8.4 8.4.9-0ubuntu0.11.04 Ubuntu 10.10: postgresql-8.4 8.4.9-0ubuntu0.10.10 Ubuntu 10.04 LTS: postgresql-8.4 8.4.9-0ubuntu0.10.04 Ubuntu 8.04 LTS: postgresql-8.3 8.3.16-0ubuntu0.8.04 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-1229-1 CVE-2011-2483 Package Information: https://launchpad.net/ubuntu/+source/postgresql-8.4/8.4.9-0ubuntu0.11.04 https://launchpad.net/ubuntu/+source/postgresql-8.4/8.4.9-0ubuntu0.10.10 https://launchpad.net/ubuntu/+source/postgresql-8.4/8.4.9-0ubuntu0.10.04 https://launchpad.net/ubuntu/+source/postgresql-8.3/8.3.16-0ubuntu0.8.04 . Ubuntu Security Alert USN-4567-1 tackles a vulnerability in MySQL involving AES passwords that jeopardizes system integrity.. PostgreSQL Security, Password Handling, UbuntuVulnerabilities. . Severity: Critical. LinuxSecurity.com Team
Oct 13, 2011
•Critical
Ubuntu
98
security advisoryimportantRed Hat Enterprise IPARed Hat: RHSA-2008:0860-02 important: ipa Kerberos Password Flaw
Updated ipa packages that fix a security flaw are now available for Red Hat Enterprise IPA. This update has been rated as having important security impact by the Red Hat Security Response Team.. ==================================================================== Red Hat Security Advisory Synopsis: Important: ipa security update Advisory ID: RHSA-2008:0860-02 Product: Red Hat Enterprise IPA Advisory URL: https://access.redhat.com/errata/RHSA-2008:0860.html Issue date: 2008-09-10 CVE Names: CVE-2008-3274 ==================================================================== 1. Summary: Updated ipa packages that fix a security flaw are now available for Red Hat Enterprise IPA. This update has been rated as having important security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat IPA 1 for RHEL 5 Server - i386, x86_64 3. Description: Red Hat Enterprise IPA is an integrated solution to provide centrally-managed Identity (machines, users, virtual machines, groups, authentication credentials), Policy (configuration settings, access control information) and Audit (events, logs, analysis) services. A flaw was found in the Red Hat Enterprise IPA installation procedure. The master Kerberos password was set up in the LDAP server in such a way that it was possible to retrieve the password via an anonymous LDAP connection. (CVE-2008-3274) Note: the master Kerberos password is used to encrypt keys. This flaw does not lead to individual keys being exposed. Users of Red Hat IPA should upgrade to these updated packages and perform the operations explained in the solution to resolve this issue. 4. Solution: To fully resolve this problem, you need to manually perform the following steps after installing the updated packages: Disclaimer: The following procedure performs critical, low-level operations on your IPA system, and it is imperative that you back up yoursystem before carrying out any of the following steps. A failure during this procedure may compromise the readability of all or part of your Kerberos keys. 1. Upgrade all of your servers (masters and replicas) and restart the dirsrv service on all of them. No other daemon needs to be restarted at this stage. 2. On one master server, run the following tool: $ ipa-fix-2008-3274 --check This should report that the system is vulnerable. 3. On the same master server, run the following tool: $ ipa-fix-2008-3274 --fix This should dump all Kerberos principals, reload them, and then return a message stating that the operation completed successfully. If not, you should contact Red Hat GSS for immediate assistance. This step should also create a .gpg file symmetrically-encrypted with the Directory Manager password. This file contains a backup of all Kerberos key material and is written to /var/lib/ipa/. Attention: DO NOT RUN THIS COMMAND ON ANY OTHER SERVER. See the next step. 4. On all other IPA servers, run the following tool: $ ipa-fix-2008-3274 --fix-replica This will report that the system is NOT vulnerable and will then download the master key for the local KDC instance. This command will restart the KDC service. If the command reports a system as anything other than not vulnerable, verify that replication between masters is working correctly. The procedure will not successfully complete until replication failures are addressed. Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at 5. Bugs fixed (http://bugzilla.redhat.com/): 457835 - CVE-2008-3274 IPA Kerberos master password disclosure 6. Package List: Red Hat IPA 1 for RHEL 5Server: Source: i386: ipa-admintools-1.0.0-23.el5ipa.i386.rpm ipa-client-1.0.0-23.el5ipa.i386.rpm ipa-debuginfo-1.0.0-23.el5ipa.i386.rpm ipa-python-1.0.0-23.el5ipa.i386.rpm ipa-server-1.0.0-23.el5ipa.i386.rpm ipa-server-selinux-1.0.0-23.el5ipa.i386.rpm x86_64: ipa-admintools-1.0.0-23.el5ipa.x86_64.rpm ipa-client-1.0.0-23.el5ipa.x86_64.rpm ipa-debuginfo-1.0.0-23.el5ipa.x86_64.rpm ipa-python-1.0.0-23.el5ipa.x86_64.rpm ipa-server-1.0.0-23.el5ipa.x86_64.rpm ipa-server-selinux-1.0.0-23.el5ipa.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key#package 7. References: https://www.cve.org/CVERecord?id=CVE-2008-3274 https://access.redhat.com/security/updates/classification#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact Copyright 2008 Red Hat, Inc. . Red Hat publishes a significant ipa security patch tackling a serious vulnerability in Kerberos password handling practices.. Red Hat IPA Update, Security Patch, Kerberos Management, LDAP Authentication. . Severity: Important. LinuxSecurity.com Team
Sep 10, 2008
•Important
Red Hat
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Community Poll
What got you started with Linux?
Search Topics
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!