- Issued:
- 2009-02-11
- Updated:
- 2009-02-11
RHSA-2009:0261 - Moderate: vnc security update
Synopsis
Moderate: vnc security update
Type/Severity
Security Advisory Moderate
Topic
Updated vnc packages to correct a security issue are now available for Red Hat Enterprise Linux 3, 4, and 5.
This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Description
Virtual Network Computing (VNC) is a remote display system which allows you to view a computer's "desktop" environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures.
An insufficient input validation flaw was discovered in the VNC client application, vncviewer. If an attacker could convince a victim to connect to a malicious VNC server, or when an attacker was able to connect to vncviewer running in the "listen" mode, the attacker could cause the victim's vncviewer to crash or, possibly, execute arbitrary code. (CVE-2008-4770)
Users of vncviewer should upgrade to these updated packages, which contain a backported patch to resolve this issue. For the update to take effect, all running instances of vncviewer must be restarted after the update is installed.
Solution
Before applying this update, make sure that all previously-released errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.3 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.3 | ia64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.3 | i386 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 4.7 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 4.7 | ia64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 4.7 | i386 |
| Red Hat Enterprise Linux for Power, big endian | 5 | ppc |
| Red Hat Enterprise Linux for Power, big endian | 4 | ppc |
| Red Hat Enterprise Linux for Power, big endian | 3 | ppc |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 5.3 | ppc |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 4.7 | ppc |
| Red Hat Enterprise Linux for IBM z Systems | 5 | s390x |
| Red Hat Enterprise Linux for IBM z Systems | 4 | s390x |
| Red Hat Enterprise Linux for IBM z Systems | 4 | s390 |
| Red Hat Enterprise Linux for IBM z Systems | 3 | s390x |
| Red Hat Enterprise Linux for IBM z Systems | 3 | s390 |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 5.3 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 4.7 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 4.7 | s390 |
| Red Hat Enterprise Linux Workstation | 5 | x86_64 |
| Red Hat Enterprise Linux Workstation | 5 | i386 |
| Red Hat Enterprise Linux Workstation | 4 | x86_64 |
| Red Hat Enterprise Linux Workstation | 4 | ia64 |
| Red Hat Enterprise Linux Workstation | 4 | i386 |
| Red Hat Enterprise Linux Workstation | 3 | x86_64 |
| Red Hat Enterprise Linux Workstation | 3 | ia64 |
| Red Hat Enterprise Linux Workstation | 3 | i386 |
| Red Hat Enterprise Linux Server | 5 | x86_64 |
| Red Hat Enterprise Linux Server | 5 | ia64 |
| Red Hat Enterprise Linux Server | 5 | i386 |
| Red Hat Enterprise Linux Server | 4 | x86_64 |
| Red Hat Enterprise Linux Server | 4 | ia64 |
| Red Hat Enterprise Linux Server | 4 | i386 |
| Red Hat Enterprise Linux Server | 3 | x86_64 |
| Red Hat Enterprise Linux Server | 3 | ia64 |
| Red Hat Enterprise Linux Server | 3 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 5 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 5 | i386 |
| Red Hat Enterprise Linux Server - AUS | 5.3 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 5.3 | ia64 |
| Red Hat Enterprise Linux Server - AUS | 5.3 | i386 |
| Red Hat Enterprise Linux Desktop | 5 | x86_64 |
| Red Hat Enterprise Linux Desktop | 5 | i386 |
| Red Hat Enterprise Linux Desktop | 4 | x86_64 |
| Red Hat Enterprise Linux Desktop | 4 | i386 |
| Red Hat Enterprise Linux Desktop | 3 | x86_64 |
| Red Hat Enterprise Linux Desktop | 3 | i386 |
Updated Packages
- vnc-4.0-12.el4_7.1.ppc.rpm
- vnc-4.1.2-14.el5_3.1.x86_64.rpm
- vnc-server-4.0-12.el4_7.1.ppc.rpm
- vnc-4.1.2-14.el5_3.1.ia64.rpm
- vnc-server-4.0-12.el4_7.1.ia64.rpm
- vnc-server-4.0-12.el4_7.1.s390x.rpm
- vnc-4.1.2-14.el5_3.1.s390x.rpm
- vnc-server-4.0-12.el4_7.1.x86_64.rpm
- vnc-4.0-12.el4_7.1.x86_64.rpm
- vnc-4.0-12.el4_7.1.s390x.rpm
- vnc-server-4.0-12.el4_7.1.i386.rpm
- vnc-4.1.2-14.el5_3.1.ppc.rpm
- vnc-4.0-12.el4_7.1.s390.rpm
- vnc-4.1.2-14.el5_3.1.i386.rpm
- vnc-4.0-12.el4_7.1.src.rpm
- vnc-4.1.2-14.el5_3.1.src.rpm
- vnc-4.0-12.el4_7.1.i386.rpm
- vnc-server-4.0-12.el4_7.1.s390.rpm
- vnc-4.0-12.el4_7.1.ia64.rpm
- vnc-server-4.1.2-14.el5_3.1.i386.rpm
- vnc-server-4.1.2-14.el5_3.1.x86_64.rpm
- vnc-server-4.1.2-14.el5_3.1.ppc.rpm
- vnc-server-4.1.2-14.el5_3.1.s390x.rpm
- vnc-server-4.1.2-14.el5_3.1.ia64.rpm
Fixes
CVEs
References
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.