1. Ubuntu Security Notices
  2. USN-764-1

USN-764-1: Firefox and Xulrunner vulnerabilities

Publication date

23 April 2009

Overview

Firefox and Xulrunner vulnerabilities

Releases

Packages

Details

Several flaws were discovered in the browser engine. If a user were tricked
into viewing a malicious website, a remote attacker could cause a denial of
service or possibly execute arbitrary code with the privileges of the user
invoking the program. (CVE-2009-1302, CVE-2009-1303, CVE-2009-1304,
CVE-2009-1305)

It was discovered that Firefox displayed certain Unicode characters which
could be visually confused with punctuation in valid web addresses in the
location bar. An attacker could exploit this to spoof the location bar,
such as in a phishing attack. (CVE-2009-0652)

Several flaws were discovered in the way Firefox processed malformed URI
schemes. If a user were tricked into viewing a malicious website, a remote
attacker could execute...

Several flaws were discovered in the browser engine. If a user were tricked
into viewing a malicious website, a remote attacker could cause a denial of
service or possibly execute arbitrary code with the privileges of the user
invoking the program. (CVE-2009-1302, CVE-2009-1303, CVE-2009-1304,
CVE-2009-1305)

It was discovered that Firefox displayed certain Unicode characters which
could be visually confused with punctuation in valid web addresses in the
location bar. An attacker could exploit this to spoof the location bar,
such as in a phishing attack. (CVE-2009-0652)

Several flaws were discovered in the way Firefox processed malformed URI
schemes. If a user were tricked into viewing a malicious website, a remote
attacker could execute arbitrary JavaScript or steal private data.
(CVE-2009-1306, CVE-2009-1307, CVE-2009-1309, CVE-2009-1310, CVE-2009-1312)

Cefn Hoile discovered Firefox did not adequately protect against embedded
third-party stylesheets. An attacker could exploit this to perform script
injection attacks using XBL bindings. (CVE-2009-1308)

Paolo Amadini discovered that Firefox would submit POST data when reloading
an inner frame of a web page. If a user were tricked into viewing a
malicious website, a remote attacker could steal private data.
(CVE-2009-1311)

Update instructions

After a standard system upgrade you need to restart Firefox and any applications that use xulrunner, such as Epiphany, to effect the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
9.04 jaunty firefox-3.0 –  3.0.9+nobinonly-0ubuntu0.9.04.1
abrowser –  3.0.9+nobinonly-0ubuntu0.9.04.1
xulrunner-1.9 –  1.9.0.9+nobinonly-0ubuntu0.9.04.1
8.10 intrepid firefox-3.0 –  3.0.9+nobinonly-0ubuntu0.8.10.1
abrowser –  3.0.9+nobinonly-0ubuntu0.8.10.1
xulrunner-1.9 –  1.9.0.9+nobinonly-0ubuntu0.8.10.1
8.04 hardy firefox-3.0 –  3.0.9+nobinonly-0ubuntu0.8.04.1
xulrunner-1.9 –  1.9.0.9+nobinonly-0ubuntu0.8.04.1

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References

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