Null pointer dereference in Linux kernel

1) Null pointer dereference

EUVDB-ID: #VU92828

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2010-1148

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The cifs_create function in fs/cifs/dir.c in the Linux kernel 2.6.33.2 and earlier allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a NULL nameidata (aka nd) field in a POSIX file-creation request to a server that supports UNIX extensions.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://lists.samba.org/archive/linux-cifs-client/2010-April/005741.html
https://lists.samba.org/archive/linux-cifs-client/2010-April/005742.html
https://lists.samba.org/archive/linux-cifs-client/2010-April/005746.html
https://lists.samba.org/archive/linux-cifs-client/2010-April/005757.html
https://marc.info/?l=oss-security&m=127045754521927&w=2
https://marc.info/?l=oss-security&m=127045779122119&w=2
https://openwall.com/lists/oss-security/2010/04/06/2
https://secunia.com/advisories/39344
https://www.securityfocus.com/bid/39186
https://xorl.wordpress.com/2010/04/05/linux-kernel-unix-extensions-cifs-null-pointer-dereference/
https://bugzilla.redhat.com/show_bug.cgi?id=579445
https://exchange.xforce.ibmcloud.com/vulnerabilities/57561

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.