CVE-2020-10757Improper Restriction of Operations within the Bounds of a Memory Buffer in Kernel

Severity
7.8HIGHNVD
OSV5.5
EPSS
0.7%
top 28.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedJun 9
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages6 packages

NVDlinux/linux_kernel4.54.9.227+5
Debianlinux/linux_kernel< 5.6.14-2+3
Ubuntulinux/linux_kernel< 4.4.0-184.214+2
CVEListV5linux/linux_kernelAll versions after 4.5-rc1.
NVDopensuse/leap15.1

Also affects: Debian Linux 8.0, Ubuntu Linux 16.04, 18.04, 20.04, Enterprise Linux 7.0, 8.0, Fedora 31

Patches

🔴Vulnerability Details

7
GHSA
GHSA-5r3p-jhq4-64gg: A flaw was found in the Linux Kernel in versions after 42022-05-24
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities2020-09-03
OSV
Kernel Live Patch Security Notice2020-07-27
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities2020-07-27
OSV
CVE-2020-10757: A flaw was found in the Linux Kernel in versions after 42020-06-09

📋Vendor Advisories

8
Ubuntu
Linux kernel vulnerabilities2020-09-03
Ubuntu
linux kernel vulnerabilities2020-07-31
Ubuntu
Kernel Live Patch Security Notice2020-07-27
Ubuntu
Linux kernel vulnerabilities2020-07-27
Ubuntu
Linux kernel vulnerabilities2020-07-27

💬Community

2
Bugzilla
CVE-2020-10757 kernel: kernel: DAX hugepages not considered during mremap [fedora-all]2020-06-04
Bugzilla
CVE-2020-10757 kernel: kernel: DAX hugepages not considered during mremap2020-06-01
CVE-2020-10757 — Linux Kernel vulnerability | cvebase