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CVE-2010-1938

HighPublished

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...

Published: May 28, 2010
Updated: Aug 7, 2024
Assigning CNA: mitre
Evidence observed: May 27, 2010

Primary CVSS

9.3/ 10High

nvd · CVSS 2.0

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

EPSS probability estimate

21.9%

Moderate · next 30 days

Percentile: 97.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

cve-2010-1938Exploit
A simple Python script to test an off-by-one vulnerability in the OPIE library (CVE-2010-1938). This vulnerability affects certain FTP servers and may allow for Denial of Service (DoS) or arbitrary code execution.
FreeBSD 8.0 - 'ftpd' (FreeBSD-SA-10:05) Off-By-One (PoC)Exploit
Maksymilian Arciemowicz · freebsd · May 27, 2010

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