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TI-2020-11176 Aliases CVE-2020-14305GHSA-44qh-vx3p-466m

Out-of-bounds write in kernel

Priority MEDIUM 43CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 10 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

An out-of-bounds memory write flaw was found in how the Linux kernel’s Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Why it matters now

EPSS 0.05152 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 10 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
—kernelkernel 4.12-rc1—No fix listedCNA
  • kernel Vendor— Affected kernel 4.12-rc1 Fixed in — No fix listed CNA

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 4.11.12VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.12:-:*:*:*:*:*:*4.12VulnerableLinux
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:a250:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:fas_500f_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:fas_500f:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:aff_500f_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:aff_500f:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 4.11.12 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.12:-:*:*:*:*:*:* Versions 4.12 Vulnerable ·Linux
  • cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:a250:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:fas_500f_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:fas_500f:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:aff_500f_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:aff_500f:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
  • cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp

Remediation

Red Hat 2 advisories

  • RHSA-2020:4060 Released 2020-09-29 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.el7, kernel-3.10.0-1160.el7, kernel-abi-whitelists-3.10.0-1160.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) bpftool-3.10.0-1160.el7, kernel-3.10.0-1160.el7, kernel-abi-whitelists-3.10.0-1160.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.el7, kernel-3.10.0-1160.el7, kernel-abi-whitelists-3.10.0-1160.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.el7, kernel-tools-libs-devel-3.10.0-1160.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.el7, kernel-3.10.0-1160.el7, kernel-abi-whitelists-3.10.0-1160.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.el7
  • RHSA-2020:4062 Released 2020-09-29 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.rt56.1131.el7, kernel-rt-debug-3.10.0-1160.rt56.1131.el7, kernel-rt-debug-devel-3.10.0-1160.rt56.1131.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.rt56.1131.el7, kernel-rt-debug-3.10.0-1160.rt56.1131.el7, kernel-rt-debug-devel-3.10.0-1160.rt56.1131.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 planned: Out of support scope
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2020:4062
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2020:4062
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-2020-14305
  2. 2026-10-03 Alias added: GHSA-44qh-vx3p-466m

References

Exploit 1

Patch 1

Advisory 1

Other 1

Sources

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