CVE-2020-10757: Buffer Overflow

Published Jun 1, 2020
·
Updated

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.

Other sources

A flaw was found 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.

A flaw was found in the way mremap handled DAX hugepages. A local attacker could use this flaw to escalate their privileges on the system by being able to control PTEs and effectively creating physical to virtual mappings at will.

— Red Hat

Affected Software

102 affected componentsFixes available
redhat/kernel-rt<0:3.10.0-1127.18.2.rt56.1116.el7
0:3.10.0-1127.18.2.rt56.1116.el7
redhat/kernel<0:3.10.0-1127.18.2.el7
0:3.10.0-1127.18.2.el7
redhat/kernel<0:3.10.0-957.58.2.el7
0:3.10.0-957.58.2.el7
redhat/kernel<0:3.10.0-1062.33.1.el7
0:3.10.0-1062.33.1.el7
redhat/kernel-rt<0:4.18.0-193.13.2.rt13.65.el8_2
0:4.18.0-193.13.2.rt13.65.el8_2
redhat/kernel<0:4.18.0-193.13.2.el8_2
0:4.18.0-193.13.2.el8_2
redhat/kernel<0:4.18.0-80.27.1.el8_0
0:4.18.0-80.27.1.el8_0
redhat/kernel<0:4.18.0-147.24.2.el8_1
0:4.18.0-147.24.2.el8_1
Linux Linux kernel>=4.5<4.9.227
Linux Linux kernel>=4.10<4.14.184
Linux Linux kernel>=4.15<4.19.127
Linux Linux kernel>=4.20<5.4.45
Linux Linux kernel>=5.5<5.6.17
Linux Linux kernel>=5.7<5.7.1
openSUSE Leap=15.1
redhat Enterprise Linux=7.0
redhat Enterprise Linux=8.0
redhat Enterprise MRG=2.0
Fedoraproject Fedora=31
Debian Debian Linux=8.0
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=20.04
NetApp Active Iq Unified Manager Vmware Vsphere
NetApp Cloud Backup
NetApp Steelstore Cloud Integrated Storage
Linux Linux kernel>=4.5.1<=5.6.16
Linux Linux kernel=4.5-rc2
Linux Linux kernel=4.5-rc3
Linux Linux kernel=4.5-rc4
Linux Linux kernel=4.5-rc5
Linux Linux kernel=4.5-rc6
Linux Linux kernel=4.5-rc7
ubuntu/linux-azure<4.15.0-1092.102~14.04.1
4.15.0-1092.102~14.04.1
ubuntu/linux-aws-hwe<4.15.0-1079.83~16.04.1
4.15.0-1079.83~16.04.1
ubuntu/linux-azure<4.15.0-1092.102~16.04.1
4.15.0-1092.102~16.04.1
ubuntu/linux-gcp<4.15.0-1080.90~16.04.1
4.15.0-1080.90~16.04.1
ubuntu/linux-hwe<4.15.0-112.113~16.04.1
4.15.0-112.113~16.04.1
ubuntu/linux-oracle<4.15.0-1050.54~16.04.1
4.15.0-1050.54~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux<4.15.0-112.113
4.15.0-112.113
ubuntu/linux-aws<4.15.0-1079.83
4.15.0-1079.83
ubuntu/linux-aws-5.3<5.3.0-1032.34~18.04.2
5.3.0-1032.34~18.04.2
ubuntu/linux-aws-5.4<5.4.0-1022.22~18.04.1
5.4.0-1022.22~18.04.1
ubuntu/linux-azure-4.15<4.15.0-1092.102
4.15.0-1092.102
ubuntu/linux-azure-5.3<5.3.0-1034.35~18.04.1
5.3.0-1034.35~18.04.1
ubuntu/linux-azure-5.4<5.4.0-1023.23~18.04.1
5.4.0-1023.23~18.04.1
ubuntu/linux-gcp-4.15<4.15.0-1080.90
4.15.0-1080.90
ubuntu/linux-gcp-5.3<5.3.0-1032.34~18.04.1
5.3.0-1032.34~18.04.1
ubuntu/linux-gcp-5.4<5.4.0-1022.22~18.04.1
5.4.0-1022.22~18.04.1
ubuntu/linux-gke-4.15<4.15.0-1066.69
4.15.0-1066.69
ubuntu/linux-gke-5.0<5.0.0-1045.46
5.0.0-1045.46
ubuntu/linux-gke-5.3<5.3.0-1032.34~18.04.1
5.3.0-1032.34~18.04.1
ubuntu/linux-hwe<5.3.0-64.58~18.04.1
5.3.0-64.58~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-45.49~18.04.2
5.4.0-45.49~18.04.2
ubuntu/linux-kvm<4.15.0-1071.72
4.15.0-1071.72
ubuntu/linux-oem<4.15.0-1093.103
4.15.0-1093.103
ubuntu/linux-oem-osp1<5.0.0-1065.70
5.0.0-1065.70
ubuntu/linux-oracle<4.15.0-1050.54
4.15.0-1050.54
ubuntu/linux-oracle-5.3<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
ubuntu/linux-oracle-5.4<5.4.0-1022.22~18.04.1
5.4.0-1022.22~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1016.17~18.04.1
5.4.0-1016.17~18.04.1
ubuntu/linux-raspi2<4.15.0-1067.71
4.15.0-1067.71
ubuntu/linux-raspi2-5.3<5.3.0-1030.32~18.04.2
5.3.0-1030.32~18.04.2
ubuntu/linux-snapdragon<4.15.0-1083.91
4.15.0-1083.91
ubuntu/linux-aws-5.0*
ubuntu/linux-azure*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-edge*
ubuntu/linux-hwe-edge*
ubuntu/linux-oracle-5.0*
ubuntu/linux-aws-fips<4.15.0-2024.24
4.15.0-2024.24
ubuntu/linux-azure-fips<4.15.0-2006.7
4.15.0-2006.7
ubuntu/linux-fips<4.15.0-1037.42
4.15.0-1037.42
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-45.49
5.4.0-45.49
ubuntu/linux-aws<5.4.0-1022.22
5.4.0-1022.22
ubuntu/linux-azure<5.4.0-1023.23
5.4.0-1023.23
ubuntu/linux-gcp<5.4.0-1022.22
5.4.0-1022.22
ubuntu/linux-kvm<5.4.0-1021.21
5.4.0-1021.21
ubuntu/linux-oem-5.6<5.6.0-1018.18
5.6.0-1018.18
ubuntu/linux-oracle<5.4.0-1022.22
5.4.0-1022.22
ubuntu/linux-raspi<5.4.0-1016.17
5.4.0-1016.17
ubuntu/linux-riscv<5.4.0-31.35
5.4.0-31.35
ubuntu/linux-azure-fde*
ubuntu/linux-gke*
ubuntu/linux-raspi2*
ubuntu/linux-aws-fips<5.4.0-1069.73+fips2
5.4.0-1069.73+fips2
ubuntu/linux-azure-fips<5.4.0-1073.76+fips1
5.4.0-1073.76+fips1
ubuntu/linux-gcp-fips<5.4.0-1067.71~20.04.1
5.4.0-1067.71~20.04.1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*
debian/linux
6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.4-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/kernel-rt to a version that resolves this vulnerability.

    Fixed in 0:3.10.0-1127.18.2.rt56.1116.el7
  2. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:3.10.0-1127.18.2.el7
  3. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:3.10.0-957.58.2.el7
  4. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:3.10.0-1062.33.1.el7
  5. Upgrade

    Upgrade redhat/kernel-rt to a version that resolves this vulnerability.

    Fixed in 0:4.18.0-193.13.2.rt13.65.el8_2
  6. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:4.18.0-193.13.2.el8_2
  7. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:4.18.0-80.27.1.el8_0
  8. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:4.18.0-147.24.2.el8_1
  9. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.3-1
  10. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1092.102~14.04.1
  11. Upgrade

    Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-1079.83~16.04.1
  12. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1092.102~16.04.1
  13. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 4.15.0-1080.90~16.04.1
  14. Upgrade

    Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-112.113~16.04.1
  15. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1050.54~16.04.1
  16. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 4.15.0-112.113
  17. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 4.15.0-1079.83
  18. Upgrade

    Upgrade ubuntu/linux-aws-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1032.34~18.04.2
  19. Upgrade

    Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1022.22~18.04.1
  20. Upgrade

    Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1092.102
  21. Upgrade

    Upgrade ubuntu/linux-azure-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1034.35~18.04.1
  22. Upgrade

    Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1023.23~18.04.1
  23. Upgrade

    Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1080.90
  24. Upgrade

    Upgrade ubuntu/linux-gcp-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1032.34~18.04.1
  25. Upgrade

    Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1022.22~18.04.1
  26. Upgrade

    Upgrade ubuntu/linux-gke-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1066.69
  27. Upgrade

    Upgrade ubuntu/linux-gke-5.0 to a version that resolves this vulnerability.

    Fixed in 5.0.0-1045.46
  28. Upgrade

    Upgrade ubuntu/linux-gke-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1032.34~18.04.1
  29. Upgrade

    Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.

    Fixed in 5.3.0-64.58~18.04.1
  30. Upgrade

    Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-45.49~18.04.2
  31. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 4.15.0-1071.72
  32. Upgrade

    Upgrade ubuntu/linux-oem to a version that resolves this vulnerability.

    Fixed in 4.15.0-1093.103
  33. Upgrade

    Upgrade ubuntu/linux-oem-osp1 to a version that resolves this vulnerability.

    Fixed in 5.0.0-1065.70
  34. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1050.54
  35. Upgrade

    Upgrade ubuntu/linux-oracle-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1030.32~18.04.1
  36. Upgrade

    Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1022.22~18.04.1
  37. Upgrade

    Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1016.17~18.04.1
  38. Upgrade

    Upgrade ubuntu/linux-raspi2 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1067.71
  39. Upgrade

    Upgrade ubuntu/linux-raspi2-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1030.32~18.04.2
  40. Upgrade

    Upgrade ubuntu/linux-snapdragon to a version that resolves this vulnerability.

    Fixed in 4.15.0-1083.91
  41. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2024.24
  42. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2006.7
  43. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-1037.42
  44. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.4.0-45.49
  45. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.4.0-1022.22
  46. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.4.0-1023.23
  47. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1022.22
  48. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1021.21
  49. Upgrade

    Upgrade ubuntu/linux-oem-5.6 to a version that resolves this vulnerability.

    Fixed in 5.6.0-1018.18
  50. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1022.22
  51. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.4.0-1016.17
  52. Upgrade

    Upgrade ubuntu/linux-riscv to a version that resolves this vulnerability.

    Fixed in 5.4.0-31.35
  53. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1069.73+fips2
  54. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1073.76+fips1
  55. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1067.71~20.04.1
  56. Compensating control

    Do not use DAX-enabled storage.

Event History

Jun 1, 2020
Data Sourced
via Red Hat·01:11 PM
DescriptionSeverityAffected Software
Jun 4, 2020
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
Data Sourced
via OSV·09:00 AM
DescriptionSeverityAffected Software
Jun 9, 2020
CVE Published
via MITRE·12:40 PM
Data Sourced
via MITRE·12:40 PM
DescriptionWeakness
Data Sourced
via NVD·01:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2020-10757?

CVE-2020-10757 has been classified with a medium severity level due to its potential for privilege escalation.

2

How do I fix CVE-2020-10757?

To fix CVE-2020-10757, update your Linux Kernel to versions 3.10.0-1127.18.2.el7 or later, or follow your distribution's recommendations for patches.

3

Who is affected by CVE-2020-10757?

CVE-2020-10757 affects versions of the Linux Kernel after 4.5-rc1, particularly systems using DAX enabled storage.

4

What type of vulnerability is CVE-2020-10757?

CVE-2020-10757 is a privilege escalation vulnerability related to how the Linux Kernel handles DAX Huge Pages.

5

What is the impact of CVE-2020-10757?

The impact of CVE-2020-10757 allows a local attacker to escalate their privileges on the system if they have access to vulnerable DAX enabled storage.

Company

Resources

Contact

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