Vino before 2.99.4 can connect external networks contrary to the statement in the vino-preferences dialog box, which might make it easier for remote attackers to perform attacks.

The remote Oracle Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2013-0169 advisory.

    - Add reachability.patch       Remove UI about whether the is only reachable locally or not.
      Fix for CVE-2011-1164
      - Bug #553477
    - Add upnp.patch       Fix for CVE-2011-1165
      - Bug #678846
    - Add clipboard-leak.patch       Fix for CVE-2012-4429
      - Bug #857250
    - Add vino-2.8.1-sanity-check-fb-update.patch       Fix for CVE-2011-0904 and CVE-2011-0904
      - Bugs #694456, #694455

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An updated vino 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 moderate 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.

Vino is a Virtual Network Computing (VNC) server for GNOME. It allows remote users to connect to a running GNOME session using VNC.

It was found that Vino transmitted all clipboard activity on the system running Vino to all clients connected to port 5900, even those who had not authenticated. A remote attacker who is able to access port 5900 on a system running Vino could use this flaw to read clipboard data without authenticating. (CVE-2012-4429)

Two out-of-bounds memory read flaws were found in the way Vino processed client framebuffer requests in certain encodings. An authenticated client could use these flaws to send a specially crafted request to Vino, causing it to crash. (CVE-2011-0904, CVE-2011-0905)

In certain circumstances, the vino-preferences dialog box incorrectly indicated that Vino was only accessible from the local network. This could confuse a user into believing connections from external networks are not allowed (even when they are allowed). With this update, vino-preferences no longer displays connectivity and reachable information. (CVE-2011-1164)

There was no warning that Universal Plug and Play (UPnP) was used to open ports on a user's network router when the 'Configure network automatically to accept connections' option was enabled (it is disabled by default) in the Vino preferences. This update changes the option's description to avoid the risk of a UPnP router configuration change without the user's consent. (CVE-2011-1165)

All Vino users should upgrade to this updated package, which contains backported patches to resolve these issues. The GNOME session must be restarted (log out, then log back in) for this update to take effect.

It was found that Vino transmitted all clipboard activity on the system running Vino to all clients connected to port 5900, even those who had not authenticated. A remote attacker who is able to access port 5900 on a system running Vino could use this flaw to read clipboard data without authenticating. (CVE-2012-4429)

Two out-of-bounds memory read flaws were found in the way Vino processed client framebuffer requests in certain encodings. An authenticated client could use these flaws to send a specially crafted request to Vino, causing it to crash. (CVE-2011-0904, CVE-2011-0905)

In certain circumstances, the vino-preferences dialog box incorrectly indicated that Vino was only accessible from the local network. This could confuse a user into believing connections from external networks are not allowed (even when they are allowed). With this update, vino-preferences no longer displays connectivity and reachable information. (CVE-2011-1164)

There was no warning that Universal Plug and Play (UPnP) was used to open ports on a user's network router when the 'Configure network automatically to accept connections' option was enabled (it is disabled by default) in the Vino preferences. This update changes the option's description to avoid the risk of a UPnP router configuration change without the user's consent. (CVE-2011-1165)

The GNOME session must be restarted (log out, then log back in) for this update to take effect.

ID	Name	Product	Family	Severity
68712	Oracle Linux 6 : vino (ELSA-2013-0169)	Nessus	Oracle Linux Local Security Checks	medium
63671	CentOS 6 : vino (CESA-2013:0169)	Nessus	CentOS Local Security Checks	medium
63664	Scientific Linux Security Update : vino on SL6.x i386/x86_64 (20130121)	Nessus	Scientific Linux Local Security Checks	medium
63641	RHEL 6 : vino (RHSA-2013:0169)	Nessus	Red Hat Local Security Checks	medium

Detections

Analytics

CVE-2011-1164

critical

Tenable Plugins

medium

medium

medium

medium