10 - RHSA-2004:486

Problem Description:

Updated mozilla packages that fix a number of security issues are now available.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64 Red Hat Linux Advanced Workstation 2.1 - ia64 Red Hat Enterprise Linux ES version 2.1 - i386 Red Hat Enterprise Linux WS version 2.1 - i386 Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

3. Problem description:

Mozilla is an open source Web browser, advanced email and newsgroup client, IRC chat client, and HTML editor.

Jesse Ruderman discovered a cross-domain scripting bug in Mozilla. If a user is tricked into dragging a javascript link into another frame or page, it becomes possible for an attacker to steal or modify sensitive information from that site. Additionally, if a user is tricked into dragging two links in sequence to another window (not frame), it is possible for the attacker to execute arbitrary commands. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0905 to this issue.

Gael Delalleau discovered an integer overflow which affects the BMP handling code inside Mozilla. An attacker could create a carefully crafted BMP file in such a way that it would cause Mozilla to crash or execute arbitrary code when the image is viewed. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0904 to this issue.

Georgi Guninski discovered a stack-based buffer overflow in the vCard display routines. An attacker could create a carefully crafted vCard file in such a way that it would cause Mozilla to crash or execute arbitrary code when viewed. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0903 to this issue.

Wladimir Palant discovered a flaw in the way javascript interacts with the clipboard. It is possible that an attacker could use malicious javascript code to steal sensitive data which has been copied into the clipboard. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0908 to this issue.

Georgi Guninski discovered a heap based buffer overflow in the "Send Page" feature. It is possible that an attacker could construct a link in such a way that a user attempting to forward it could result in a crash or arbitrary code execution. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0902 to this issue.

Users of Mozilla should update to these updated packages, which contain backported patches and are not vulnerable to these issues.

4. Solution:

Before applying this update, make sure that all previously-released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

5. Bug IDs fixed (http://bugzilla.redhat.com/ for more info):

133023 - CAN-2004-0902 "send page" heap based buffer overflow 133024 - CAN-2004-0902 "send page" heap based buffer overflow 133022 - CAN-2004-0908 javascript clipboard information leakage 133021 - CAN-2004-0908 javascript clipboard information leakage 133017 - CAN-2004-0903 VCard buffer overflow 133016 - CAN-2004-0903 VCard buffer overflow 133015 - CAN-2004-0904 BMP integer overflows 133014 - CAN-2004-0904 BMP integer overflows 133013 - CAN-2004-0905 javascript link dragging information leak 133012 - CAN-2004-0905 javascript link dragging information leak