Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 524
Alerts This Week
Warning Icon 1 524

Ubuntu 10.04 & 8.04 USN-1138-1 Critical: DBus-GLib DoS Attack

ubuntu
Calendar Grey May 26, 2011
Scroller Ubuntu
Ubuntu Security Notice USN-1140-1 addresses a vulnerability in libxml2 that permits unauthorized access to sensitive data, potentially exposing systems to attacks.
An attacker could send crafted input to applications using DBus-GLib and cause them to crash.

Summary

An attacker could send crafted input to applications using DBus-GLib and

cause them to crash.

Software Description:

- dbus-glib: GLib bindings for DBus

Details:

It was discovered that DBus-GLib did not properly verify the access flag of

exported GObject properties under certain circumstances. A local attacker

could exploit this to bypass intended access restrictions or possibly

cause a denial of service.

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 10.04 LTS:
  libdbus-glib-1-2                0.84-1ubuntu0.2

Ubuntu 8.04 LTS:
  libdbus-glib-1-2                0.74-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References

CVE-2010-1172

Severity
critical
Lowest
Low
Medium
High
Critical

May 26, 2011

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.