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Ubuntu alert USN-1284-1 (update-manager)
========================================================================== Ubuntu Security Notice USN-1284-1 November 28, 2011 update-manager vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 11.10 - Ubuntu 11.04 - Ubuntu 10.10 - Ubuntu 10.04 LTS - Ubuntu 8.04 LTS Summary: Update Manager could be made to overwrite files as the administrator. Software Description: - update-manager: GNOME application that manages apt updates - update-notifier: Daemon which notifies about package updates Details: David Black discovered that Update Manager incorrectly extracted the downloaded upgrade tarball before verifying its GPG signature. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to replace arbitrary files. (CVE-2011-3152) David Black discovered that Update Manager created a temporary directory in an insecure fashion. A local attacker could possibly use this flaw to read the XAUTHORITY file of the user performing the upgrade. (CVE-2011-3154) This update also adds a hotfix to Update Notifier to handle cases where the upgrade is being performed from CD media. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 11.10: update-manager 1:0.152.25.5 Ubuntu 11.04: update-manager 1:0.150.5.1 update-notifier 0.111ubuntu2.1 Ubuntu 10.10: update-manager 1:0.142.23.1 update-notifier 0.105ubuntu1.1 Ubuntu 10.04 LTS: auto-upgrade-tester 1:0.134.11.1 update-notifier 0.99.3ubuntu0.1 Ubuntu 8.04 LTS: update-manager 1:0.87.31.1 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1284-1 CVE-2011-3152, CVE-2011-3154 Package Information: https://launchpad.net/ubuntu/+source/update-manager/1:0.1... https://launchpad.net/ubuntu/+source/update-manager/1:0.1... https://launchpad.net/ubuntu/+source/update-notifier/0.11... https://launchpad.net/ubuntu/+source/update-manager/1:0.1... https://launchpad.net/ubuntu/+source/update-notifier/0.10... https://launchpad.net/ubuntu/+source/update-manager/1:0.1... https://launchpad.net/ubuntu/+source/update-notifier/0.99... https://launchpad.net/ubuntu/+source/update-manager/1:0.8... -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security... (Log in to post comments)
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