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LIN1018-6912 : Security Advisory - linux - CVE-2020-28941

Created: Nov 19, 2020    Updated: Jan 17, 2021
Resolved Date: Jan 4, 2021
Found In Version: 10.18.44.1
Fix Version: 10.18.44.21
Severity: Standard
Applicable for: Wind River Linux LTS 18
Component/s: Kernel

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.

CREATE(Triage):(User=admin) [CVE-2020-28941|https://nvd.nist.gov/vuln/detail/CVE-2020-28941]

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