NULL pointer dereference in Linux Kernel
CVE-2018-14646
The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel — versions 4.15
- [Unknown] Kernel: — versions 4.15-rc8
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.5, 7.6
- Red Hat Enterprise Linux Server Tus — versions 7.6
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2018:3843 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:3666 (vendor-advisory, Vendor Advisory)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3651 (vendor-advisory, Vendor Advisory)
- marc.info/ (Patch, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-14646?
- CVE-2018-14646 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2018-11-26.
- How severe is CVE-2018-14646?
- Medium severity. CVSS v3 base score is 5.5 out of 10.