Null pointer dereference in Linux kernel - CVE-2006-7203

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Main Vulnerability Database Vulnerabilities #VU95257

Null pointer dereference in Linux kernel - CVE-2006-7203

Published: May 14, 2007 / Updated: October 11, 2017


Vulnerability identifier: #VU95257
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2006-7203
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The compat_sys_mount function in fs/compat.c in Linux kernel 2.6.20 and earlier allows local users to cause a denial of service (NULL pointer dereference and oops) by mounting a smbfs file system in compatibility mode ('mount -t smbfs').


How to mitigate CVE-2006-7203

Install update from vendor's repository.

Sources