PT-2014-7805 · Linux+4 · Linux Kernel+4

Raphael Geissert · Published 2014-09-19 · Updated 2023-01-18 · CVE-2014-7145

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.16.3

Description The issue allows remote CIFS servers to cause a denial of service, resulting in a NULL pointer dereference and client system crash, or possibly have unspecified other impact. This occurs when the IPC$ share is deleted during resolution of DFS referrals. The SMB2 tcon function in fs/cifs/smb2pdu.c is the vulnerable component.

Recommendations For Linux kernel versions prior to 3.16.3, update to version 3.16.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the SMB2 tcon function in fs/cifs/smb2pdu.c to minimize the risk of exploitation.

Fix

DoS

Weakness Enumeration

CWE-399

Related Identifiers

ALT-PU-2014-2158

ALT-PU-2014-2159

CESA-2015_0102

CVE-2014-7145

RHSA-2015:0102

RHSA-2015_0102

USN-2394-1

USN-2395-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Ubuntu

References · 25

• https://github.com/torvalds/linux/commit/18f39e7be0121317550d03e267e3ebd4dbfbb3ce · Patch
• https://ubuntu.com/security/CVE-2014-7145 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2015-0102.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2014-7145 · Security Note
• https://osv.dev/vulnerability/USN-2395-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2014-7145 · Vendor Advisory
• http://kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3 · Vendor Advisory
• http://ubuntu.com/usn/USN-2394-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-3647 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2395-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2014-7145 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2014-7145 · Security Note
• https://ubuntu.com/security/CVE-2014-3646 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-3611 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2015-3003.html · Vendor Advisory