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FreeBSD Security Advisory (FreeBSD-SA-10:05.opie.asc)

Information

Severity

Severity

Critical

Family

Family

FreeBSD Local Security Checks

CVSSv2 Base

CVSSv2 Base

9.3

CVSSv2 Vector

CVSSv2 Vector

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

Created

Created

12 years ago

Modified

Modified

4 years ago

Summary

The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-10:05.opie.asc

Insight

Insight

OPIE is a one-time password system designed to help to secure a system against replay attacks. It does so using a secure hash function and a challenge/response system. OPIE is enabled by default on FreeBSD. A programming error in the OPIE library could allow an off-by-one buffer overflow to write a single zero byte beyond the end of an on-stack buffer.

Solution

Solution

Upgrade your system to the appropriate stable release or security branch dated after the correction date https://secure1.securityspace.com/smysecure/catid.html?in=FreeBSD-SA-10:05.opie.asc

Common Vulnerabilities and Exposures (CVE)