Ustanovljen je sigurnosni problem u radu paketa freeradius koji je udaljeni napadač mogao iskoristiti kako bi pokrenuo DoS napad ili izvršio proizvoljan programski kod.
Paket:
freeradius 2.x
Operacijski sustavi:
Debian Linux 6.0 (squeeze), Debian Linux sid (unstable), Debian Linux wheezy (testing)
Razlog sigurnosnog propusta je nepravilno provjeravanje ulaznih korisničkih podataka u komponenti za EAP-TLS komunikaciju prije njihovog kopiranja u lokalni spremnik.
Posljedica:
Udaljeni napadač mogao je iskoristiti propust kako bi doveo do uskraćivanja usluge ili kako bi izvodio proizvoljan programski kod.
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Debian Security Advisory DSA-2546-1 Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
http://www.debian.org/security/ Nico Golde
September 11, 2012 http://www.debian.org/security/faq
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Package : freeradius
Vulnerability : stack-based buffer overflows
Problem type : remote
Debian-specific: no
Debian bug : 687175
CVE ID : CVE-2012-3547
Timo Warns discovered that the EAP-TLS handling of freeradius, a
high-performance and highly configurable RADIUS server, is not properly
performing length checks on user-supplied input before copying to a local
stack buffer. As a result, an unauthenticated attacker can exploit this
flaw to crash the daemon or execute arbitrary code via crafted
certificates.
For the stable distribution (squeeze), this problem has been fixed in
version 2.1.10+dfsg-2+squeeze1.
For the testing distribution (wheezy), this problem has will be fixed soon.
For the unstable distribution (sid), this problem has been fixed in
version 2.1.12+dfsg-1.1.
We recommend that you upgrade your freeradius 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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