National Cyber Awareness System

Vulnerability Summary for CVE-2010-1938

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: BID

Name: 40403

Hyperlink:http://www.securityfocus.com/bid/40403

External Source: EXPLOIT-DB

Name: 12762

Hyperlink:http://www.exploit-db.com/exploits/12762

External Source: DEBIAN

Name: DSA-2281

Hyperlink:http://www.debian.org/security/2011/dsa-2281

External Source: MISC

Name: http://site.pi3.com.pl/adv/libopie-adv.txt

Hyperlink:http://site.pi3.com.pl/adv/libopie-adv.txt

External Source: SECTRACK

Name: 1025709

Hyperlink:http://securitytracker.com/id?1025709

External Source: SECTRACK

Name: 1024040

Hyperlink:http://securitytracker.com/id?1024040

External Source: SREASON

Name: 7450

Hyperlink:http://securityreason.com/securityalert/7450

External Source: SREASONRES

Name: 20100527 libopie __readrec() off-by one (FreeBSD ftpd remote PoC)

Hyperlink:http://securityreason.com/achievement_securityalert/87

External Source: FREEBSD

Name: FreeBSD-SA-10:05

Type: Advisory

Hyperlink:http://security.FreeBSD.org/advisories/FreeBSD-SA-10:05.opie.asc

External Source: SECUNIA

Name: 45136

Hyperlink:http://secunia.com/advisories/45136

External Source: SECUNIA

Name: 39966

Type: Advisory

Hyperlink:http://secunia.com/advisories/39966

External Source: SECUNIA

Name: 39963

Type: Advisory

Hyperlink:http://secunia.com/advisories/39963

External Source: CONFIRM

Name: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584932

Hyperlink:http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584932

External Source: MISC

Name: http://blog.pi3.com.pl/?p=111

Hyperlink:http://blog.pi3.com.pl/?p=111