CVE-2011-3152: Medium severity Canonical Ubuntu Linux vulnerability
DistUpgrade/DistUpgradeFetcherCore.py in Update Manager before 1:0.87.31.1, 1:0.134.x before 1:0.134.11.1, 1:0.142.x before 1:0.142.23.1, 1:0.150.x before 1:0.150.5.1, and 1:0.152.x before 1:0.152.25.5 on Ubuntu 8.04 through 11.10 does not verify the GPG signature before extracting an upgrade tarball, which allows man-in-the-middle attackers to (1) create or overwrite arbitrary files via a directory traversal attack using a crafted tar file, or (2) bypass authentication via a crafted meta-release file.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2011-3152?
CVE-2011-3152 has a medium severity rating due to its potential for unauthorized code execution during the update process.
How do I fix CVE-2011-3152?
To fix CVE-2011-3152, update the Update Manager to version 1:0.87.31.1 or later for affected Ubuntu distributions.
Which versions of Ubuntu are affected by CVE-2011-3152?
CVE-2011-3152 affects Ubuntu versions 8.04 through 11.10 that utilize specific versions of the Update Manager.
What kind of vulnerability is CVE-2011-3152?
CVE-2011-3152 is a security vulnerability that relates to GPG signature verification failure during update extractions.
Is there a workaround for CVE-2011-3152?
There are no recommended workarounds for CVE-2011-3152; updating to a secure version is the best course of action.