CVE-2017-12153 Null dereference in kernel since v3.1-rc1 through v4.13

What is CVE-2017-12153?

CVE-2017-12153 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 21 Sep 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A security flaw was discovered in the nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This function does not check whether the required attributes are present in a Netlink request. This request can be issued by a user with the CAP_NET_ADMIN capability and may result in a NULL pointer dereference and system crash.

Weakness: CWE-476

Which versions are affected by CVE-2017-12153?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel.

How do I fix CVE-2017-12153?

Apply the vendor's patch.

Is CVE-2017-12153 being exploited?

There is no known exploitation of CVE-2017-12153 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-2017-12153, GHSA-2wr3-w5rh-2qx4, UBUNTU-CVE-2017-12153.