The remote host is affected by the vulnerability described in GLSA-201206-03 (Opera: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Opera. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user to open a specially crafted web       page, possibly resulting in execution of arbitrary code with the       privileges of the process or a Denial of Service condition. A remote       attacker may be able to: trick users into downloading and executing       arbitrary files, bypass intended access restrictions, spoof trusted       content, spoof URLs, bypass the Same Origin Policy, obtain sensitive       information, force subscriptions to arbitrary feeds, bypass the popup       blocker, bypass CSS filtering, conduct cross-site scripting attacks, or       have other unknown impact.
    A local attacker could perform symlink attacks to overwrite arbitrary       files with the privileges of the user running the application or possibly       obtain sensitive information.
    A physically proximate attacker may be able to access an email account.
  Workaround :

    There is no known workaround at this time.

The version of Opera installed on the remote host is earlier than 10.0 and thus reportedly affected by multiple issues :

  - Opera does not check the revocation status for     intermediate certificates not served by the server. If     the intermediate is revoked, this might not impact the     security rating in Opera, and the site might be shown as     secure. (929)

  - The collapsed Address bar can in some cases temporarily     show the previous domain of the present site. (930)

  - Some Unicode characters are treated incorrectly which     might cause international domain names that use them to     be shown in the wrong format. Showing these addresses in     Unicode instead of punycode could allow for limited     address spoofing. (932)

  - The application trusts root X.509 certificates signed     with the MD2 algorithm. (933)

  - Certificates which use a wild card immediately before     the top level domain, or nulls in the domain name, may     pass validation checks in Opera. Sites using such     certificates may then incorrectly be presented as     secure. (934)

The version of Opera installed on the remote host is earlier than 10.00 and thus potentially affected by multiple issues : 

  - The collapsed Address bar can in some cases temporarily show the previous domain of the present site. 

  - Certificates which use a wild card immediately before the top level domain, or nulls in the domain name, may pass validation checks in Opera. 

  - Some Unicode characters are treated incorrectly which might cause international domain names that use them to be shown in the wrong format.  Showing these addresses in Unicode instead of punycode could allow for limited address spoofing. 

  - Opera does not check the revocation status for intermediate certificates not served by the server.

ID	Name	Product	Family	Published	Updated	Severity
59631	GLSA-201206-03 : Opera: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	6/21/2012	1/6/2021	critical
40827	Opera < 10.0 Multiple Vulnerabilities	Nessus	Windows	9/1/2009	11/15/2018	medium
5146	Opera < 10.00 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	9/1/2009	3/6/2019	medium

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critical

medium

medium