CVE-2017-12153
MEDIUM severity · CVSS 4.4 · CWE-476
4.4CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredHigh
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://seclists.org/oss-sec/2017/q3/437 ↗
Additional information
- NVD record
- http://seclists.org/oss-sec/2017/q3/437Patch
- https://bugzilla.novell.com/show_bug.cgi?id=1058410Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=1491046Patch
- https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git/commit/?id=e785fa0a164aa11001cba931367c7f94ffaff888Patch
- https://marc.info/?t=150525503100001&r=1&w=2Patch
- http://www.debian.org/security/2017/dsa-3981Advisory
- http://www.securityfocus.com/bid/100855Advisory
- https://usn.ubuntu.com/3583-1/Advisory