Vulnerability Details

Samba 2.2.2 <= 2.2.6 Vulnerability (CVE-2003-0085)

Published: 2021-09-24 10:59:30
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C

Detection Type:
Remote Banner Unreliable

Solution Type:
Vendor Patch

Summary:
Samba is prone to a buffer overflow vulnerability.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
There was a bug in the length checking for encrypted password change requests from clients. A client could potentially send an encrypted password, which, when decrypted with the old hashed password could be used as a buffer overrun attack on the stack of smbd. The attach would have to be crafted such that converting a DOS codepage string to little endian UCS2 unicode would translate into an executable block of code. All versions of Samba between 2.2.2 to 2.2.6 inclusive are vulnerable to this problem. This version of Samba 2.2.7 contains a fix for this problem. Earlier versions of Samba are not vulnerable. There is no known exploit or exploit code for this vulnerability, it was discovered by a code audit by Debian Samba maintainers.

Affected Versions:
Samba versions 2.2.2 through 2.2.6.

Recommendations:
Update to version 2.2.7a or later.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2003-0085

References:

https://www.samba.org/samba/history/samba-2.2.7a.html

Severity
High
CVSS Score
10.0
Published
2021-09-24
Modified
2021-10-06
Category
Buffer overflow

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