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Vulnerability record · CVE-2010-1938 · published 28 May 2010

CVE-2010-1938: Freebsd vulnerability

Freebsd · Freebsd

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.

9.3 CVSS 2.0 High EPSS 22% · top 2.4% CWE-189 · CWE-189
9.3CVSS 2.0 base score
22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
28References
16 Jun 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://blog.pi3.com.pl/?p=111
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584932
http://secunia.com/advisories/39963 Vendor Advisory
http://secunia.com/advisories/39966 Vendor Advisory
http://secunia.com/advisories/45136
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:05.opie.asc Vendor Advisory
http://securityreason.com/achievement_securityalert/87
http://securityreason.com/securityalert/7450
http://securitytracker.com/id?1024040
http://securitytracker.com/id?1025709
http://site.pi3.com.pl/adv/libopie-adv.txt
http://www.debian.org/security/2011/dsa-2281
http://www.exploit-db.com/exploits/12762
http://www.securityfocus.com/bid/40403
http://blog.pi3.com.pl/?p=111
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584932
http://secunia.com/advisories/39963 Vendor Advisory
http://secunia.com/advisories/39966 Vendor Advisory
http://secunia.com/advisories/45136
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:05.opie.asc Vendor Advisory
http://securityreason.com/achievement_securityalert/87
http://securityreason.com/securityalert/7450
http://securitytracker.com/id?1024040
http://securitytracker.com/id?1025709
http://site.pi3.com.pl/adv/libopie-adv.txt
http://www.debian.org/security/2011/dsa-2281
http://www.exploit-db.com/exploits/12762
http://www.securityfocus.com/bid/40403

Track CVE-2010-1938 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2010-1938), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.