Ispravljena je sigurnosna ranjivost pri radu programskog alata Xserver. Riječ je o poslužitelju za grafičko korisničko sučelje (eng. Graphical User Interface) na operacijskim sustavima UNIX i Linux. Sigurnosni nedostatak vezan je uz neispravan rad funkcionalnosti "xrdb" (eng. Xserver resource database) koja nepravilno filtrira nazive računala. Udaljeni napadač može iskoristiti navedeni propust za izvršavanje proizvoljnih naredbi. Takav napad izvesti će pohranjivanjem metaznakova ljuske operacijskog sustava u nazive računala dobivene iz DHCP ili XDMCP poruka. Svim korisnicima opisanoga paketa savjetuje se nadogradnja.

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Debian Security Advisory DSA-2213-1                   Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
http://www.debian.org/security/                                Nico Golde
April 8, 2011                          http://www.debian.org/security/faq
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Package        : x11-xserver-utils
Vulnerability  : missing input sanitization
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2011-0465
Debian bug     : 621423

Sebastian Krahmer discovered that the xrdb utility of x11-xserver-utils,
a X server resource database utility, is not properly filtering crafted
hostnames.  This allows a remote attacker to execute arbitrary code with
root privileges given that either remote logins via xdmcp are allowed or
the attacker is able to place a rogue DHCP server into the victims network.


The oldstable distribution (lenny), this problem has been fixed in
version 7.3+6.

For the stable distribution (squeeze), this problem has been fixed in
version 7.5+3.

For the testing distribution (wheezy), this problem will be fixed soon.

For the testing distribution (sid), this problem has been fixed in
version 7.6+2.


We recommend that you upgrade your x11-xserver-utils packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.

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