U radu programskog paketa pdns uočen je sigurnosni propust koji udaljenom napadaču omogućuje izvođenje napada uskraćivanjem usluge (DoS).
Paket:
pdns 2.x
Operacijski sustavi:
Debian Linux 5.0 (lenny), Debian Linux 6.0 (squeeze)
Problem:
pogreška u programskoj komponenti
Iskorištavanje:
udaljeno
Posljedica:
uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2012-0206
Izvorni ID preporuke:
DSA-2385-1
Izvor:
Debian
Problem:
Propust je posljedica toga što PowerDNS poslužitelj odgovara na pakete s odgovorima (eng. response packet).
Posljedica:
Napadač ga može iskoristiti za stvaranje beskonačne petlje između PowerDNS i drugog DNS poslužitelja, što može imati za posljedicu stvaranje DoS stanja.
Rješenje:
Korisnicima se preporuča korištenje ispravljenih inačica.
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Debian Security Advisory DSA-2385-1 Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
http://www.debian.org/security/ Florian Weimer
January 10, 2012 http://www.debian.org/security/faq
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Package : pdns
Vulnerability : packet loop
Problem type : remote
Debian-specific: no
CVE ID : CVE-2012-0206
Ray Morris discovered that the PowerDNS authoritative sever responds
to response packets. An attacker who can spoof the source address of
IP packets can cause an endless packet loop between a PowerDNS
authoritative server and another DNS server, leading to a denial of
service.
For the oldstable distribution (lenny), this problem has been fixed in
version 2.9.21.2-1+lenny1.
For the stable distribution (squeeze), this problem has been fixed in
version 2.9.22-8+squeeze1.
For the testing distribution (wheezy) and the unstable distribution
(sid), this problem will be fixed soon.
We recommend that you upgrade your pdns 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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