CVE-2020-15396 Race condition in n/a

High 7.8 Published Updated

A local attacker can exploit a race condition in the faxsetup utility to escalate privileges to root on HylaFAX+ systems.

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-2020-15396?

CVE-2020-15396 is a high-severity vulnerability in Fedoraproject Fedora, published on 30 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls chown on files in user-owned directories. By winning a race, a local attacker could use this to escalate his privileges to root.

Weakness: CWE-362

Which versions are affected by CVE-2020-15396?

It affects 5 products.

Products include Fedoraproject Fedora, Hylafax\+ Project Hylafax\+, Ifax Hylafax Enterprise, Opensuse Backports Sle, Opensuse Leap.

How do I fix CVE-2020-15396?

Apply the vendor's patch.

Is CVE-2020-15396 being exploited?

There is no known exploitation of CVE-2020-15396 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as ALPINE-CVE-2020-15396, DEBIAN-CVE-2020-15396, GHSA-wg48-gxwc-c947, UBUNTU-CVE-2020-15396.

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