CVE-2018-14646 — NULL Pointer Dereference in Kernel

CWE-476 — NULL Pointer Dereference7 documents7 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 87.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Linux KernelRedhat Enterprise Linux DesktopRedhat Enterprise Linux Server+4 more
Timeline
PublishedNov 26
Latest updateMay 13

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.

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages5 packages

▶Ubuntulinux/linux_kernel< 3.11.0-12.19+2
▶NVDlinux/linux_kernel4.14+1

Also affects: Enterprise Linux 7.6, 7.5

Patches

Patch: bugzilla.redhat.com ↗Patch: git.kernel.org ↗Patch: marc.info ↗

🔴Vulnerability Details

3
GHSA
GHSA-x5cj-fgc8-52c7: The Linux kernel before 4↗2022-05-13
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CVEList
CVE-2018-14646: The Linux kernel before 4↗2018-11-26
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OSV
CVE-2018-14646: The Linux kernel before 4↗2018-11-26
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📋Vendor Advisories

2
Red Hat
kernel: NULL pointer dereference in af_netlink.c:__netlink_ns_capable() allows for denial of service↗2018-11-26
▶
Debian
CVE-2018-14646: linux - The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer de...↗2018
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💬Community

1
Bugzilla
CVE-2018-14646 kernel: NULL pointer dereference in af_netlink.c:__netlink_ns_capable() allows for denial of service↗2018-09-18
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CVE-2018-14646 — NULL Pointer Dereference in Kernel | cvebase