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TI-2020-08654 Aliases CVE-2020-10757GHSA-5r3p-jhq4-64gg

Memory corruption in Kernel

Priority LOW 36CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 26 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system.

Why it matters now

EPSS 0.00992 62nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 8 advisoriesRed Hat: 26 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
—KernelAll versions after 4.5-rc1.—No fix listedCNA
  • Kernel Vendor— Affected All versions after 4.5-rc1. Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.5 to before 4.9.227; 4.10 to before 4.14.184; 4.15 to before 4.19.127; 4.20 to before 5.4.45; 5.5 to before 5.6.17; 5.7 to before 5.7.1VulnerableLinux
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*2.0VulnerableRed Hat
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*20.04VulnerableCanonical
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.5 to before 4.9.227; 4.10 to before 4.14.184; 4.15 to before 4.19.127; 4.20 to before 5.4.45; 5.5 to before 5.6.17; 5.7 to before 5.7.1 Vulnerable ·Linux
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Versions 20.04 Vulnerable ·Canonical
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp

Remediation

Red Hat 8 advisories

  • RHSA-2020:3598 Released 2020-09-01 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) bpftool-3.10.0-1062.33.1.el7, kernel-3.10.0-1062.33.1.el7, kernel-abi-whitelists-3.10.0-1062.33.1.el7 +9
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.33.1.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.7) bpftool-3.10.0-1062.33.1.el7, kernel-3.10.0-1062.33.1.el7, kernel-abi-whitelists-3.10.0-1062.33.1.el7 +12
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debug-devel-3.10.0-1062.33.1.el7, kernel-tools-libs-devel-3.10.0-1062.33.1.el7
  • RHSA-2020:3226 Released 2020-07-29 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) bpftool-3.10.0-957.58.2.el7, kernel-3.10.0-957.58.2.el7, kernel-abi-whitelists-3.10.0-957.58.2.el7 +9
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.58.2.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.6) bpftool-3.10.0-957.58.2.el7, kernel-3.10.0-957.58.2.el7, kernel-abi-whitelists-3.10.0-957.58.2.el7 +12
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debug-devel-3.10.0-957.58.2.el7, kernel-tools-libs-devel-3.10.0-957.58.2.el7
    • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS kernel-devel-3.10.0-957.58.2.el7, kernel-headers-3.10.0-957.58.2.el7, perf-3.10.0-957.58.2.el7 +1
  • RHSA-2020:3222 Released 2020-07-29 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v. 8.1) kernel-tools-libs-devel-4.18.0-147.24.2.el8_1
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) bpftool-4.18.0-147.24.2.el8_1, kernel-4.18.0-147.24.2.el8_1, kernel-abi-whitelists-4.18.0-147.24.2.el8_1 +19
Show 5 more Red Hat advisories
  • RHSA-2020:3220 Released 2020-07-29 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1127.18.2.el7, kernel-3.10.0-1127.18.2.el7, kernel-abi-whitelists-3.10.0-1127.18.2.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.18.2.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) bpftool-3.10.0-1127.18.2.el7, kernel-3.10.0-1127.18.2.el7, kernel-abi-whitelists-3.10.0-1127.18.2.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.18.2.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1127.18.2.el7, kernel-3.10.0-1127.18.2.el7, kernel-abi-whitelists-3.10.0-1127.18.2.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1127.18.2.el7, kernel-tools-libs-devel-3.10.0-1127.18.2.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1127.18.2.el7, kernel-3.10.0-1127.18.2.el7, kernel-abi-whitelists-3.10.0-1127.18.2.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.18.2.el7
  • RHSA-2020:3221 Released 2020-07-29 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-1127.18.2.rt56.1116.el7, kernel-rt-debug-3.10.0-1127.18.2.rt56.1116.el7, kernel-rt-debug-devel-3.10.0-1127.18.2.rt56.1116.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1127.18.2.rt56.1116.el7, kernel-rt-debug-3.10.0-1127.18.2.rt56.1116.el7, kernel-rt-debug-devel-3.10.0-1127.18.2.rt56.1116.el7 +7
  • RHSA-2020:3041 Released 2020-07-21 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.0) bpftool-4.18.0-80.27.1.el8_0, kernel-4.18.0-80.27.1.el8_0, kernel-abi-whitelists-4.18.0-80.27.1.el8_0 +14
  • RHSA-2020:3016 Released 2020-07-21 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-193.13.2.rt13.65.el8_2, kernel-rt-core-4.18.0-193.13.2.rt13.65.el8_2, kernel-rt-debug-4.18.0-193.13.2.rt13.65.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-193.13.2.rt13.65.el8_2, kernel-rt-core-4.18.0-193.13.2.rt13.65.el8_2, kernel-rt-debug-4.18.0-193.13.2.rt13.65.el8_2 +9
  • RHSA-2020:3010 Released 2020-07-21 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-193.13.2.el8_2
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-193.13.2.el8_2, kernel-4.18.0-193.13.2.el8_2, kernel-abi-whitelists-4.18.0-193.13.2.el8_2 +19

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:3010
Red Hat CodeReady Linux Builder EUS (v. 8.1)Fixed RHSA-2020:3222
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2020:3010
Red Hat Enterprise Linux BaseOS E4S (v. 8.0)Fixed RHSA-2020:3041
Red Hat Enterprise Linux BaseOS EUS (v. 8.1)Fixed RHSA-2020:3222
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:3220
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:3220
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:3220
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)Fixed RHSA-2020:3226
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7)Fixed RHSA-2020:3598
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:3220
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6)Fixed RHSA-2020:3226
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7)Fixed RHSA-2020:3598
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2020:3016
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2020:3016
Red Hat Enterprise Linux Realtime (v. 7)Fixed RHSA-2020:3221
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:3220
Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2020:3226
Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2020:3598
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:3220
Red Hat Enterprise Linux Server Optional EUS (v. 7.6)Fixed RHSA-2020:3226
Red Hat Enterprise Linux Server Optional EUS (v. 7.7)Fixed RHSA-2020:3598
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:3220
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:3220
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2020:3221
Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUSFixed RHSA-2020:3226
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.0)
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-10757
  2. 2026-10-03 Alias added: GHSA-5r3p-jhq4-64gg

References

Exploit 1

Patch 2

Advisory 10

Sources

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