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The remote Oracle Linux host is missing a security update.
From Red Hat Security Advisory 2011:1342 :
An updated thunderbird package that fixes several security issues is
now available for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having
critical security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.
Mozilla Thunderbird is a standalone mail and newsgroup client.
Several flaws were found in the processing of malformed HTML content.
An HTML mail message containing malicious content could cause
Thunderbird to crash or, potentially, execute arbitrary code with the
privileges of the user running Thunderbird. (CVE-2011-2995)
A flaw was found in the way Thunderbird processed the 'Enter' keypress
event. A malicious HTML mail message could present a download dialog
while the key is pressed, activating the default 'Open' action. A
remote attacker could exploit this vulnerability by causing the mail
client to open malicious web content. (CVE-2011-2372)
A flaw was found in the way Thunderbird handled Location headers in
redirect responses. Two copies of this header with different values
could be a symptom of a CRLF injection attack against a vulnerable
server. Thunderbird now treats two copies of the Location,
Content-Length, or Content-Disposition header as an error condition.
A flaw was found in the way Thunderbird handled frame objects with
certain names. An attacker could use this flaw to cause a plug-in to
grant its content access to another site or the local file system,
violating the same-origin policy. (CVE-2011-2999)
An integer underflow flaw was found in the way Thunderbird handled
memory, causing Thunderbird to crash or, potentially, execute
arbitrary code with the privileges of the user running Thunderbird.
All Thunderbird users should upgrade to this updated package, which
resolves these issues. All running instances of Thunderbird must be
restarted for the update to take effect.
See also :
Update the affected thunderbird package.
Risk factor :
Critical / CVSS Base Score : 10.0
Family: Oracle Linux Local Security Checks
Nessus Plugin ID: 68360 ()
CVE ID: CVE-2011-2372CVE-2011-2995CVE-2011-2998CVE-2011-2999CVE-2011-3000
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