Vulnerability Monitor

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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.

Security Impact Summary

CVE-2010-1938 is a security vulnerability that . Impacting 2 products from freebsd, from nrl organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2010, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2010-05-28T18:30:01.470

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 9.3 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
CWE-189

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	freebsd	freebsd	6	Yes
Operating System	freebsd	freebsd	6.4	Yes
Operating System	freebsd	freebsd	6.4	Yes
Operating System	freebsd	freebsd	6.4	Yes
Operating System	freebsd	freebsd	6.4	Yes
Operating System	freebsd	freebsd	6.4	Yes
Operating System	freebsd	freebsd	6.4	Yes
Operating System	freebsd	freebsd	6.4	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0	Yes
Operating System	freebsd	freebsd	7.0-release	Yes
Operating System	freebsd	freebsd	7.0_beta4	Yes
Operating System	freebsd	freebsd	7.0_releng	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.1	Yes
Operating System	freebsd	freebsd	7.2	Yes
Operating System	freebsd	freebsd	7.2	Yes
Operating System	freebsd	freebsd	7.2	Yes
Operating System	freebsd	freebsd	8.0	Yes
Operating System	freebsd	freebsd	8.1-prerelease	Yes
Application	nrl	opie	≤ 2.4.1	Yes
Application	nrl	opie	2.2	Yes
Application	nrl	opie	2.3	Yes
Application	nrl	opie	2.4	Yes
Application	nrl	opie	2.10	Yes
Application	nrl	opie	2.11	Yes
Application	nrl	opie	2.21	Yes
Application	nrl	opie	2.22	Yes
Application	nrl	opie	2.32	Yes

References

http://blog.pi3.com.pl/?p=111 ([email protected])
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584932 ([email protected])
http://secunia.com/advisories/39963 Vendor Advisory ([email protected])
http://secunia.com/advisories/39966 Vendor Advisory ([email protected])
http://secunia.com/advisories/45136 ([email protected])
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:05.opie.asc Vendor Advisory ([email protected])
http://securityreason.com/achievement_securityalert/87 ([email protected])
http://securityreason.com/securityalert/7450 ([email protected])
http://securitytracker.com/id?1024040 ([email protected])
http://securitytracker.com/id?1025709 ([email protected])
http://site.pi3.com.pl/adv/libopie-adv.txt ([email protected])
http://www.debian.org/security/2011/dsa-2281 ([email protected])
http://www.exploit-db.com/exploits/12762 ([email protected])
http://www.securityfocus.com/bid/40403 ([email protected])
http://blog.pi3.com.pl/?p=111 (af854a3a-2127-422b-91ae-364da2661108)
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584932 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/39963 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/39966 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/45136 (af854a3a-2127-422b-91ae-364da2661108)
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:05.opie.asc Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://securityreason.com/achievement_securityalert/87 (af854a3a-2127-422b-91ae-364da2661108)
http://securityreason.com/securityalert/7450 (af854a3a-2127-422b-91ae-364da2661108)
http://securitytracker.com/id?1024040 (af854a3a-2127-422b-91ae-364da2661108)
http://securitytracker.com/id?1025709 (af854a3a-2127-422b-91ae-364da2661108)
http://site.pi3.com.pl/adv/libopie-adv.txt (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2011/dsa-2281 (af854a3a-2127-422b-91ae-364da2661108)
http://www.exploit-db.com/exploits/12762 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/40403 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For freebsd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.