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[ GLSA 201308-02 ] D-Bus: Denial of Service
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PostPosted: Thu Aug 22, 2013 10:26 pm    Post subject: [ GLSA 201308-02 ] D-Bus: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: D-Bus: Denial of Service (GLSA 201308-02)
Severity: normal
Exploitable: local
Date: August 22, 2013
Bug(s): #473190
ID: 201308-02

Synopsis

A vulnerability has been found in D-Bus which allows a local user
to cause a Denial of Service.


Background

D-Bus is a message bus system which processes can use to talk to each
other.


Affected Packages

Package: sys-apps/dbus
Vulnerable: < 1.6.12
Unaffected: >= 1.6.12
Architectures: All supported architectures


Description

D-Bus’ _dbus_printf_string_upper_bound() function crashes if it
returns exactly 1024 bytes.


Impact

A local attacker could provide specially-crafted input to an application
using D-Bus which would cause _dbus_printf_string_upper_bound() to return
1024 bytes and crash, causing a Denial of Service condition.


Workaround

There is no known workaround at this time.

Resolution

All D-Bus users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.6.12"
   


References


CVE-2013-2168
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