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Vulnerability · Published Nov 19, 2020 · Assigned by mitre

CVE-2020-28941

Medium 5.5

In plain English

A medium-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 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 73.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An issue was discovered in drivers/accessibility/speakup/spk_ttyio.c in the Linux kernel through 5.9.9. Local attackers on systems with the speakup driver could cause a local denial of service attack, aka CID-d41227544427. This occurs because of an invalid free when the line discipline is used more than once.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.9.11-1DEBIAN-CVE-2020-28941
Debian:13linux5.9.11-1DEBIAN-CVE-2020-28941
Debian:14linux5.9.11-1DEBIAN-CVE-2020-28941
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-28941
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-28941
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-28941

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-763 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References