Vulnerability Details : CVE-2010-1938
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.
Vulnerability category: Execute codeDenial of service
Products affected by CVE-2010-1938
- cpe:2.3:o:freebsd:freebsd:7.0:current:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6:stable:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:beta_4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:pre-release:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0_releng:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0_beta4:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:rc1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0-release:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:stable:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:release_p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.2:pre-release:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.2:stable:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.2:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:release:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:release_p3:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:release_p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:release_p5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:release-p9:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:pre-release:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:stable:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:stable:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:release-p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:release:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:release-p8:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:release-p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:releng:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:release-p5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.0:release-p12:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:release-p6:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:release-p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:8.1-prerelease:*:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:*:test1:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:2.32:*:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:2.4:*:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:2.11:*:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:2.10:*:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:2.3:*:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:2.22:*:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:2.21:*:*:*:*:*:*:*
- cpe:2.3:a:nrl:opie:2.2:*:*:*:*:*:*:*
Threat overview for CVE-2010-1938
Top countries where our scanners detected CVE-2010-1938
Top open port discovered on systems with this issue
80
IPs affected by CVE-2010-1938 1
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2010-1938
84.64%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2010-1938
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST |
CWE ids for CVE-2010-1938
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2010-1938
-
http://www.securityfocus.com/bid/40403
OPIE '__opiereadrec()' Off By One Heap Memory Corruption Vulnerability
-
http://www.debian.org/security/2011/dsa-2281
Debian -- Security Information -- DSA-2281-1 opie
-
http://blog.pi3.com.pl/?p=111
OPIE Authentication System off-by-one : pi3 blog
-
http://site.pi3.com.pl/adv/libopie-adv.txt
-
http://securitytracker.com/id?1025709
OPIE Off-by-One Overflow in 'opielogin' Lets Local Users Gain Elevated Privileges - SecurityTracker
-
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584932
#584932 - CVE-2010-1938 - Debian Bug report logs
-
http://securityreason.com/achievement_securityalert/87
libopie __readrec() off-by one (FreeBSD ftpd remote PoC) - CXSecurity.com
-
http://securityreason.com/securityalert/7450
libopie __readrec() off-by one (FreeBSD ftpd remote PoC) - CXSecurity.com
-
http://www.exploit-db.com/exploits/12762
FreeBSD 8.0 - 'ftpd' (FreeBSD-SA-10:05) Off-By-One (PoC) - FreeBSD dos Exploit
-
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:05.opie.asc
Vendor Advisory
-
http://securitytracker.com/id?1024040
OPIE Off-by-One Buffer Overflow Lets Remote Users Deny Service - SecurityTracker
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