CVE-2017-15102 Race condition in Linux kernel through version 4.9-rc1

What is CVE-2017-15102?

CVE-2017-15102 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 15 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The tower_probe function in drivers/usb/misc/legousbtower.c in the Linux kernel before 4.8.1 allows local users (who are physically proximate for inserting a crafted USB device) to gain privileges by leveraging a write-what-where condition that occurs after a race condition and a NULL pointer dereference.

Weakness: CWE-476

Which versions are affected by CVE-2017-15102?

It affects 3 products.

Products include Canonical Ubuntu Linux, Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2017-15102?

Apply the vendor's patch.

Is CVE-2017-15102 being exploited?

There is no known exploitation of CVE-2017-15102 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2017-15102, GHSA-484w-4xhh-mhmf, UBUNTU-CVE-2017-15102.