What’s Vulnerable › Vulnerabilities
CVE-2018-14646
- Severity: medium (CVSS 5.5 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2018-11-26 · updated 2026-06-17
- Weakness: CWE-476
Description
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.
Affected products
- Linux kernel: through 4.14; 4.15-rc1, 4.15-rc2, 4.15-rc3, 4.15-rc4, 4.15-rc5, 4.15-rc6 (+1)
- RedHat Enterprise Linux Desktop: 7.0
- RedHat Enterprise Linux Server: 7.0
- RedHat Enterprise Linux Server Aus: 7.6
- RedHat Enterprise Linux Server Eus: 7.5, 7.6
- RedHat Enterprise Linux Server Tus: 7.6
- RedHat Enterprise Linux Workstation: 7.0
References
- https://access.redhat.com/errata/RHSA-2018:3651
- https://access.redhat.com/errata/RHSA-2018:3666
- https://access.redhat.com/errata/RHSA-2018:3843
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0cee
- https://marc.info/?l=linux-netdev&m=151500466401174&w=2
- https://access.redhat.com/errata/RHSA-2018:3651
- https://access.redhat.com/errata/RHSA-2018:3666
- https://access.redhat.com/errata/RHSA-2018:3843
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0cee
- https://marc.info/?l=linux-netdev&m=151500466401174&w=2
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