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Vulnerability · Published Jun 7, 2021 · Assigned by mitre

CVE-2020-36385

High 7.8

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 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.5%top 26.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8kernel-tools-libs-devel4.18.0-305.25.1.el8_4ALSA-2021:4056
Debian:12linux5.10.4-1DEBIAN-CVE-2020-36385
Debian:13linux5.10.4-1DEBIAN-CVE-2020-36385
Debian:14linux5.10.4-1DEBIAN-CVE-2020-36385
Rocky Linux:8kernel0:4.18.0-305.25.1.el8_4RLSA-2021:4056
Rocky Linux:8kernel-rt0:4.18.0-305.25.1.rt7.97.el8_4RLSA-2021:4088
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-36385
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-36385
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-36385

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References