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TI-2018-10509 Aliases CVE-2018-14646GHSA-x5cj-fgc8-52c7

NULL pointer dereference in [UNKNOWN] kernel:

Priority LOW 25CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 14 fixed, 1 without a fix

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

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.

Why it matters now

EPSS 0.00393 33rd percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 14 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
[UNKNOWN]kernel:4.15-rc8—No fix listedCNA
  • kernel: Vendor[UNKNOWN] Affected 4.15-rc8 Fixed in — No fix listed CNA

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 4.14VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.15:rc1:*:*:*:*:*:*4.15 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.15:rc2:*:*:*:*:*:*4.15 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:*4.15 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.15:rc4:*:*:*:*:*:*4.15 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.15:rc5:*:*:*:*:*:*4.15 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.15:rc6:*:*:*:*:*:*4.15 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.15:rc7:*:*:*:*:*:*4.15 rc7VulnerableLinux
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 4.14 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.15:rc1:*:*:*:*:*:* Versions 4.15 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.15:rc2:*:*:*:*:*:* Versions 4.15 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:* Versions 4.15 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.15:rc4:*:*:*:*:*:* Versions 4.15 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.15:rc5:*:*:*:*:*:* Versions 4.15 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.15:rc6:*:*:*:*:*:* Versions 4.15 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.15:rc7:*:*:*:*:*:* Versions 4.15 rc7 Vulnerable ·Linux
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Show 5 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

Red Hat 3 advisories

  • RHSA-2018:3843 Released 2018-12-18 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) kernel-3.10.0-862.25.3.el7, kernel-abi-whitelists-3.10.0-862.25.3.el7, kernel-debug-3.10.0-862.25.3.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) kernel-tools-libs-devel-3.10.0-862.25.3.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.5) kernel-3.10.0-862.25.3.el7, kernel-abi-whitelists-3.10.0-862.25.3.el7, kernel-bootwrapper-3.10.0-862.25.3.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.5) kernel-debug-devel-3.10.0-862.25.3.el7, kernel-tools-libs-devel-3.10.0-862.25.3.el7
  • RHSA-2018:3651 Released 2018-11-27 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-957.1.3.el7, kernel-3.10.0-957.1.3.el7, kernel-abi-whitelists-3.10.0-957.1.3.el7 +9
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-957.1.3.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) bpftool-3.10.0-957.1.3.el7, kernel-3.10.0-957.1.3.el7, kernel-abi-whitelists-3.10.0-957.1.3.el7 +9
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-957.1.3.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-957.1.3.el7, kernel-3.10.0-957.1.3.el7, kernel-abi-whitelists-3.10.0-957.1.3.el7 +12
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-957.1.3.el7, kernel-tools-libs-devel-3.10.0-957.1.3.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-957.1.3.el7, kernel-3.10.0-957.1.3.el7, kernel-abi-whitelists-3.10.0-957.1.3.el7 +9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-957.1.3.el7
  • RHSA-2018:3666 Released 2018-11-27 · Red Hat rating Moderate
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-957.1.3.rt56.913.el7, kernel-rt-debug-3.10.0-957.1.3.rt56.913.el7, kernel-rt-debug-devel-3.10.0-957.1.3.rt56.913.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-957.1.3.rt56.913.el7, kernel-rt-debug-3.10.0-957.1.3.rt56.913.el7, kernel-rt-debug-devel-3.10.0-957.1.3.rt56.913.el7 +7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise MRG 2AffectedNo fix yet
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:3651
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:3651
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:3651
Red Hat Enterprise Linux ComputeNode EUS (v. 7.5)Fixed RHSA-2018:3843
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:3651
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5)Fixed RHSA-2018:3843
Red Hat Enterprise Linux Realtime (v. 7)Fixed RHSA-2018:3666
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:3651
Red Hat Enterprise Linux Server EUS (v. 7.5)Fixed RHSA-2018:3843
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:3651
Red Hat Enterprise Linux Server Optional EUS (v. 7.5)Fixed RHSA-2018:3843
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:3651
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:3651
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2018:3666
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-14646
  2. 2026-10-03 Alias added: GHSA-x5cj-fgc8-52c7

References

Patch 3

Advisory 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences