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Vulnerability · Published Sep 9, 2020 · Assigned by mitre

CVE-2020-25212

High 7.0

In plain English

A high-severity security flaw in the kernel-tools-libs-devel package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.0High
Exploit odds (30 days)0.3%top 79.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8kernel-tools-libs-devel4.18.0-305.el8ALSA-2021:1578
Debian:12linux5.7.17-1DEBIAN-CVE-2020-25212
Debian:13linux5.7.17-1DEBIAN-CVE-2020-25212
Debian:14linux5.7.17-1DEBIAN-CVE-2020-25212
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-25212
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-25212
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-25212

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References