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Vulnerability · Published Nov 28, 2020 · Assigned by mitre

CVE-2020-29374

Low 3.6

In plain English

A low-severity security flaw in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)3.6Low
Exploit odds (30 days)0.4%top 65.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.7.6-1DEBIAN-CVE-2020-29374
Debian:13linux5.7.6-1DEBIAN-CVE-2020-29374
Debian:14linux5.7.6-1DEBIAN-CVE-2020-29374
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-29374
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-29374
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-29374
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-29374

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References