USN-1355-3 : ubufox and webfav update


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

USN-1355-1 fixed vulnerabilities in Firefox. This update provides
updated ubufox and webfav packages for use with the latest Firefox.

Original advisory details:

It was discovered that if a user chose to export their Firefox Sync
key the 'Firefox Recovery Key.html' file is saved with incorrect
permissions, making the file contents potentially readable by other
users. (CVE-2012-0450)

Nicolas Gregoire and Aki Helin discovered that when processing a
malformed embedded XSLT stylesheet, Firefox can crash due to memory
corruption. If the user were tricked into opening a specially crafted
page, an attacker could exploit this to cause a denial of service via
application crash, or potentially execute code with the privileges of
the user invoking Firefox. (CVE-2012-0449)

It was discovered that memory corruption could occur during the
decoding of Ogg Vorbis files. If the user were tricked into opening a
specially crafted file, an attacker could exploit this to cause a
denial of service via application crash, or potentially execute code
with the privileges of the user invoking Firefox. (CVE-2012-0444)

Tim Abraldes discovered that when encoding certain images types the
resulting data was always a fixed size. There is the possibility of
sensitive data from uninitialized memory being appended to these
images. (CVE-2012-0447)

It was discovered that Firefox did not properly perform XPConnect
security checks. An attacker could exploit this to conduct cross-site
scripting (XSS) attacks through web pages and Firefox extensions.
With cross-site scripting vulnerabilities, if a user were tricked
into viewing a specially crafted page, a remote attacker could
exploit this to modify the contents, or steal confidential data,
within the same domain. (CVE-2012-0446)

It was discovered that Firefox did not properly handle node removal
in the DOM. If the user were tricked into opening a specially crafted
page, an attacker could exploit this to cause a denial of service via
application crash, or potentially execute code with the privileges of
the user invoking Firefox. (CVE-2011-3659)

Alex Dvorov discovered that Firefox did not properly handle
sub-frames in form submissions. An attacker could exploit this to
conduct phishing attacks using HTML5 frames. (CVE-2012-0445)

Ben Hawkes, Christian Holler, Honza Bombas, Jason Orendorff, Jesse
Ruderman, Jan Odvarko, Peter Van Der Beken, Bob Clary, and Bill
McCloskey discovered memory safety issues affecting Firefox. If the
user were tricked into opening a specially crafted page, an attacker
could exploit these to cause a denial of service via application
crash, or potentially execute code with the privileges of the user
invoking Firefox. (CVE-2012-0442, CVE-2012-0443)

See also :


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Solution :

Update the affected package(s).

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)



original thread:
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click here in order to visit the hack challenges