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Vulnerability · Published Dec 9, 2020 · Assigned by mitre

CVE-2020-29660

Medium 4.4

In plain English

A medium-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 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)4.4Medium
Exploit odds (30 days)0.5%top 58.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8kernel-tools-libs-devel4.18.0-348.el8ALSA-2021:4356
Debian:12linux5.9.15-1DEBIAN-CVE-2020-29660
Debian:13linux5.9.15-1DEBIAN-CVE-2020-29660
Debian:14linux5.9.15-1DEBIAN-CVE-2020-29660
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-29660
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-29660
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-29660

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References