CVE-2019-15918 Information disclosure in n/a

High 7.8 Published Updated

An out-of-bounds read in the Linux kernel SMB2 negotiation allows attackers to potentially disclose sensitive memory contents.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2019-15918?

CVE-2019-15918 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 4 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures are incompletely updated after a change from smb30 to smb21.

Weakness: CWE-125

Which versions are affected by CVE-2019-15918?

It affects 2 products.

Products include Canonical Ubuntu Linux, Linux kernel.

How do I fix CVE-2019-15918?

Upgrade to a fixed version.

Is CVE-2019-15918 being exploited?

There is no known exploitation of CVE-2019-15918 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-15918, GHSA-54gc-9mvf-cqgf, UBUNTU-CVE-2019-15918.

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