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Vulnerability · Published May 5, 2020 · Assigned by mitre

CVE-2020-12657

High 7.8

In plain English

A high-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 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.7%top 46.3% 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 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.6.7-1DEBIAN-CVE-2020-12657
Debian:13linux5.6.7-1DEBIAN-CVE-2020-12657
Debian:14linux5.6.7-1DEBIAN-CVE-2020-12657
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-12657
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-12657
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-12657
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-12657

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References