CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
AI Score
Confidence
Low
EPSS
Percentile
49.5%
USN-1284-1 fixed vulnerabilities in Update Manager. One of the fixes
introduced a regression for Kubuntu users attempting to upgrade to a newer
Ubuntu release. This update fixes the problem.
We apologize for the inconvenience.
Original advisory 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 machine-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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 8.04 | noarch | update-manager-core | <ย 1:0.87.33 | UNKNOWN |
Ubuntu | 11.10 | noarch | update-manager-core | <ย 1:0.152.25.8 | UNKNOWN |
Ubuntu | 11.04 | noarch | update-manager-core | <ย 1:0.150.5.2 | UNKNOWN |
Ubuntu | 10.10 | noarch | update-manager-core | <ย 1:0.142.23.2 | UNKNOWN |
Ubuntu | 10.04 | noarch | update-manager-core | <ย 1:0.134.11.2 | UNKNOWN |