Off-by-one error in the __opiereadrec function in readrec.c in libopie in OPIE 2.4.1-test1 and earlier, as used on FreeBSD 6.4 through 8.1-PRERELEASE and other platforms, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a long username, as demonstrated by a long USER command to the FreeBSD 8.0 ftpd.
Weaknesses in this category are related to improper calculation or conversion of numbers.
Link | Tags |
---|---|
http://blog.pi3.com.pl/?p=111 | |
http://securityreason.com/securityalert/7450 | third party advisory |
http://www.securityfocus.com/bid/40403 | vdb entry |
http://site.pi3.com.pl/adv/libopie-adv.txt | |
http://securitytracker.com/id?1024040 | vdb entry |
http://www.debian.org/security/2011/dsa-2281 | vendor advisory |
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:05.opie.asc | vendor advisory |
http://secunia.com/advisories/39966 | third party advisory vendor advisory |
http://www.exploit-db.com/exploits/12762 | exploit |
http://securityreason.com/achievement_securityalert/87 | third party advisory |
http://securitytracker.com/id?1025709 | vdb entry |
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584932 | |
http://secunia.com/advisories/39963 | third party advisory vendor advisory |
http://secunia.com/advisories/45136 | third party advisory |