CVE-2017-17864 Information disclosure in n/a

Low 3.3 Published Updated

Local attackers can exploit a Linux kernel BPF verifier flaw to leak sensitive address information, aiding further exploitation.

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-2017-17864?

CVE-2017-17864 is a low-severity vulnerability in Debian Debian Linux, published on 23 Dec 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."

Weakness: CWE-200

Which versions are affected by CVE-2017-17864?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2017-17864?

Apply the vendor's patch.

Is CVE-2017-17864 being exploited?

There is no known exploitation of CVE-2017-17864 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-17864, GHSA-899p-w494-v855.

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