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ubuntuUbuntuUSN-4343-1
HistoryApr 28, 2020 - 12:00 a.m.

Linux kernel vulnerability

2020-04-2800:00:00
ubuntu.com
35

7.1 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.9%

Releases

  • Ubuntu 20.04 LTS

Packages

  • linux - Linux kernel

Details

Al Viro discovered that the Linux kernel for s390x systems did not properly
perform page table upgrades for kernel sections that use secondary address
mode. A local attacker could use this to cause a denial of service (system
crash) or execute arbitrary code.