RHSA-2009:1095: Critical security update
59
Several flaws were found in the way Firefox handles malformed JavaScript code. A website containing
malicious content could launch a cross-site scripting (XSS) attack or execute arbitrary JavaScript with
the permissions of another website. (
CVE-2009-2472
339
)
For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.0.12.
You can find a link to the Mozilla advisories in the References section of this errata.
All Firefox users should upgrade to these updated packages, which contain Firefox version 3.0.12,
which corrects these issues. After installing the update, Firefox must be restarted for the changes to
take effect.
1.57.2. RHSA-2009:1095: Critical security update
Important
This update has already been released (prior to the GA of this release) as the security
errata
RHSA-2009:1095
340
Updated firefox packages that fix several security issues are now available for Red Hat Enterprise
Linux 4 and 5.
This update has been rated as having critical security impact by the Red Hat Security Response
Team.
Mozilla Firefox is an open source Web browser. XULRunner provides the XUL Runtime environment
for Mozilla Firefox.
Several flaws were found in the processing of malformed web content. A web page containing
malicious content could cause Firefox to crash or, potentially, execute arbitrary code as the user
running Firefox. (
CVE-2009-1392
341
,
CVE-2009-1832
342
,
CVE-2009-1833
343
,
CVE-2009-1837
344
,
CVE-2009-1838
345
,
CVE-2009-1841
346
)
Multiple flaws were found in the processing of malformed, local file content. If a user loaded
malicious, local content via the file:// URL, it was possible for that content to access other local data.
(
CVE-2009-1835
347
,
CVE-2009-1839
348
)
A script, privilege elevation flaw was found in the way Firefox loaded XML User Interface Language
(XUL) scripts. Firefox and certain add-ons could load malicious content when certain policy checks did
not happen. (
CVE-2009-1840
349
)
A flaw was found in the way Firefox displayed certain Unicode characters in International Domain
Names (IDN). If an IDN contained invalid characters, they may have been displayed as spaces,
making it appear to the user that they were visiting a trusted site. (
CVE-2009-1834
350
)
339
https://www.redhat.com/security/data/cve/CVE-2009-2472.html
341
https://www.redhat.com/security/data/cve/CVE-2009-1392.html
342
https://www.redhat.com/security/data/cve/CVE-2009-1832.html
343
https://www.redhat.com/security/data/cve/CVE-2009-1833.html
344
https://www.redhat.com/security/data/cve/CVE-2009-1837.html
345
https://www.redhat.com/security/data/cve/CVE-2009-1838.html
346
https://www.redhat.com/security/data/cve/CVE-2009-1841.html
347
https://www.redhat.com/security/data/cve/CVE-2009-1835.html
348
https://www.redhat.com/security/data/cve/CVE-2009-1839.html
349
https://www.redhat.com/security/data/cve/CVE-2009-1840.html
350
https://www.redhat.com/security/data/cve/CVE-2009-1834.html
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