Pronađen je sigurnosni propust kod programskih paketa libguac-client-vnc, libguac-client-rdp i libguac. Napadač ga može iskoristiti za gašenje ranjivih paketa i uskraćivanje usluga.
| Paket: | libguac 0.x, libguac-client-rdp 0.x, libguac-client-vnc 0.x |
| Operacijski sustavi: | Fedora 18 |
| Problem: | preljev međuspremnika |
| Iskorištavanje: | udaljeno |
| Posljedica: | uskraćivanje usluga (DoS) |
| Rješenje: | programska zakrpa proizvođača |
| CVE: | CVE-2012-4415 |
| Izvorni ID preporuke: | FEDORA-2012-13914 |
| Izvor: | Fedora |
| Problem: | |
| Izvor problema je preljev međuspremnika do kojeg dolazi pri obradi pojedinih specifikacija. |
|
| Posljedica: | |
| Udaljeni napadač je mogao postavljanjem posebno oblikovane specifikacije protokola dovesti do nasilnog gašenja paketa i uskraćivanja usluga. |
|
| Rješenje: | |
| Korisnicima se savjetuje nadogradnja paketa. |
|
Izvorni tekst preporuke
--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2012-13914
2012-09-13 16:41:11
--------------------------------------------------------------------------------
Name : libguac-client-vnc
Product : Fedora 18
Version : 0.6.0
Release : 8.fc18
URL : http://guac-dev.org/
Summary : VNC support for guacd
Description :
Guacamole is an HTML5 web application that provides access to desktop
environments using remote desktop protocols such as VNC or RDP. A centralized
server acts as a tunnel and proxy, allowing access to multiple desktops through
a web browser. No plugins are needed: the client requires nothing more than a
web browser supporting HTML5 and AJAX.
libguac-client-vnc is a plugin for guacd which provides support for VNC via the
libvncclient library (part of libvncserver).
--------------------------------------------------------------------------------
Update Information:
Guacamole C stack rebuild
--------------------------------------------------------------------------------
References:
[ 1 ] Bug #856743 - CVE-2012-4415 libguac: Stack-based buffer overflow by
protocol handling in guac client plug-in
https://bugzilla.redhat.com/show_bug.cgi?id=856743
--------------------------------------------------------------------------------
This update can be installed with the "yum" update program. Use
su -c 'yum update libguac-client-vnc' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
--------------------------------------------------------------------------------
_______________________________________________
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--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2012-13914
2012-09-13 16:41:11
--------------------------------------------------------------------------------
Name : libguac-client-rdp
Product : Fedora 18
Version : 0.6.1
Release : 2.fc18
URL : http://guac-dev.org/
Summary : RDP support for guacd
Description :
Guacamole is an HTML5 web application that provides access to desktop
environments using remote desktop protocols such as VNC or RDP. A centralized
server acts as a tunnel and proxy, allowing access to multiple desktops through
a web browser. No plugins are needed: the client requires nothing more than a
web browser supporting HTML5 and AJAX.
libguac-client-rdp is a plugin for guacd which provides support for RDP
via the FreeRDP library.
--------------------------------------------------------------------------------
Update Information:
Guacamole C stack rebuild
--------------------------------------------------------------------------------
References:
[ 1 ] Bug #856743 - CVE-2012-4415 libguac: Stack-based buffer overflow by
protocol handling in guac client plug-in
https://bugzilla.redhat.com/show_bug.cgi?id=856743
--------------------------------------------------------------------------------
This update can be installed with the "yum" update program. Use
su -c 'yum update libguac-client-rdp' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
--------------------------------------------------------------------------------
_______________________________________________
package-announce mailing list
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
https://admin.fedoraproject.org/mailman/listinfo/package-announce
--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2012-13914
2012-09-13 16:41:11
--------------------------------------------------------------------------------
Name : libguac
Product : Fedora 18
Version : 0.6.3
Release : 1.fc18
URL : http://guac-dev.org/
Summary : The common library used by all C components of Guacamole
Description :
Guacamole is an HTML5 web application that provides access to desktop
environments using remote desktop protocols such as VNC or RDP. A centralized
server acts as a tunnel and proxy, allowing access to multiple desktops through
a web browser. No plugins are needed: the client requires nothing more than a
web browser supporting HTML5 and AJAX.
libguac is the core library for guacd (the Guacamole proxy) and any protocol
support plugins for guacd. libguac provides efficient buffered I/O of text and
base64 data, as well as somewhat abstracted functions for sending Guacamole
instructions.
--------------------------------------------------------------------------------
Update Information:
Guacamole C stack rebuild
--------------------------------------------------------------------------------
References:
[ 1 ] Bug #856743 - CVE-2012-4415 libguac: Stack-based buffer overflow by
protocol handling in guac client plug-in
https://bugzilla.redhat.com/show_bug.cgi?id=856743
--------------------------------------------------------------------------------
This update can be installed with the "yum" update program. Use
su -c 'yum update libguac' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
--------------------------------------------------------------------------------
_______________________________________________
package-announce mailing list
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
https://admin.fedoraproject.org/mailman/listinfo/package-announce
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