CVE-2014-7145 Null dereference in n/a

High 7.8 Published Updated

Remote CIFS servers can crash Linux clients via NULL pointer dereference in SMB2 DFS referral handling, requiring kernel upgrades.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2014-7145?

CVE-2014-7145 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 28 Sep 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The SMB2_tcon function in fs/cifs/smb2pdu.c in the Linux kernel before 3.16.3 allows remote CIFS servers to cause a denial of service (NULL pointer dereference and client system crash) or possibly have unspecified other impact by deleting the IPC$ share during resolution of DFS referrals.

Weakness: CWE-399

Which versions are affected by CVE-2014-7145?

It affects 6 products.

Products include Canonical Ubuntu Linux, Linux kernel, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Hpc Node, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2014-7145?

Upgrade to a fixed version.

Is CVE-2014-7145 being exploited?

There is no known exploitation of CVE-2014-7145 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-7145, GHSA-pcv5-8q8x-qqfx, UBUNTU-CVE-2014-7145.

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