medium
4.9
CWE
476
Advisory Published
CVE Published
Updated

CVE-2017-12153: Null Pointer Dereference

First published: Tue Sep 12 2017(Updated: )

A security flaw is present in nl80211_set_rekey_data() function in the Linux kernel since v3.1-rc1 through v4.13. This function does not check whether required attributes are present in a netlink request. This request can be issued by a user with CAP_NET_ADMIN privilege and may result in NULL dereference and a system crash. Vulnerability surface: An analysis shows that NL80211_CMD_SET_REKEY_OFFLOAD request should be issued for a WiFi interface connected to a wireless network. This means that an attacker should be a privileged user already or should be root in a user+net namespace to which a WiFi interface was moved from a main net namespace. We believe the later configuration to be unlikely. References: <a href="http://seclists.org/oss-sec/2017/q3/437">http://seclists.org/oss-sec/2017/q3/437</a> <a href="https://marc.info/?t=150525503100001&amp;r=1&amp;w=2">https://marc.info/?t=150525503100001&amp;r=1&amp;w=2</a> Suggested upstream patch: <a href="https://marc.info/?l=linux-wireless&amp;m=150525493517953&amp;w=2">https://marc.info/?l=linux-wireless&amp;m=150525493517953&amp;w=2</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux kernel<=4.13.3
Debian=8.0
Debian=9.0
Ubuntu Linux=12.04
Ubuntu Linux=14.04
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

http://seclists.org/oss-sec/2017/q3/437

Remedy

https://bugzilla.novell.com/show_bug.cgi?id=1058410

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=1491046

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git/commit/?id=e785fa0a164aa11001cba931367c7f94ffaff888

Remedy

https://marc.info/?t=150525503100001&r=1&w=2

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-12153?

    CVE-2017-12153 has a severity rating that suggests it may lead to denial-of-service conditions due to a NULL dereference.

  • How do I fix CVE-2017-12153?

    To fix CVE-2017-12153, update the Linux kernel to version 4.13.4 or later depending on your distribution's available package.

  • What systems are affected by CVE-2017-12153?

    CVE-2017-12153 affects Linux kernel versions from 3.1-rc1 through 4.13.3 across various distributions.

  • Who can exploit CVE-2017-12153?

    A user with CAP_NET_ADMIN privileges can exploit CVE-2017-12153.

  • What impact does CVE-2017-12153 have on system performance?

    CVE-2017-12153 can cause system crashes or instability due to unexpected NULL pointer dereferencing.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203