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Vulnerability · Published Jun 9, 2020 · Assigned by redhat

CVE-2020-10757

High 7.8

In plain English

A high-severity security flaw in Kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.0%top 37.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.6.14-2DEBIAN-CVE-2020-10757
Debian:13linux5.6.14-2DEBIAN-CVE-2020-10757
Debian:14linux5.6.14-2DEBIAN-CVE-2020-10757
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-10757
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-10757
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-10757
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-10757

Affected products (as reported)

VendorProductVersions
n/a Kernel All versions after 4.5-rc1.

References