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Family: Gentoo Local Security Checks --> Category: infos

[GLSA-200606-01] Opera: Buffer overflow Vulnerability Scan

Vulnerability Scan Summary
Opera: Buffer overflow

Detailed Explanation for this Vulnerability Test
The remote host is affected by the vulnerability described in GLSA-200606-01
(Opera: Buffer overflow)

SEC Consult has discovered a buffer overflow in the code
processing style sheet attributes. It is caused by an integer
signedness error in a length check followed by a call to a string
function. It seems to be hard to exploit this buffer overflow to
execute arbitrary code because of the very large amount memory that has
to be copied.


A remote attacker can entice a user to visit a web page containing
a specially crafted style sheet attribute that will crash the user's
browser and maybe lead to the execution of arbitrary code.


There is no known workaround at this time.


All Opera users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/opera-8.54"

Threat Level: Medium

Click HERE for more information and discussions on this network vulnerability scan.


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