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CVE-2017-12153

4.4 · MEDIUM

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.

Published Sep 21, 2017CWE-476EPSS 0.47%

Overview

CVE-2017-12153 is a medium-severity vulnerability. It was published on September 21, 2017 and has a CVSS 3.0 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refseclists.org/oss-sec/2017/q3/437Refwww.debian.org/security/2017/dsa-3981Refwww.securityfocus.com/bid/100855Refbugzilla.novell.com/show_bug.cgi?id=1058410Refbugzilla.redhat.com/show_bug.cgi?id=1491046Refgit.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git/commit/?id=e785fa0a164aa11001cba931367c7f94ffaff888Refmarc.info/?t=150525503100001&r=1&w=2Refusn.ubuntu.com/3583-1/Refusn.ubuntu.com/3583-2/Refseclists.org/oss-sec/2017/q3/437

How CyberStrike helps

Frequently asked questions

What is CVE-2017-12153?

CVE-2017-12153 is a medium-severity vulnerability. It was published on September 21, 2017 and has a CVSS 3.0 base score of 4.4 (MEDIUM).

How severe is CVE-2017-12153?

This vulnerability has a CVSS 3.0 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-12153?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-12153?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-12153 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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