USN-4343-1
Advisory lineage Upstream: 2 Downstream: 0
Upstream
Published: 28 Apr 2020, 23:27
Last modified:03 Jun 2026, 13:33
Vulnerability Summary
Overall Risk (default)
minimal
0/100 CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
28 Apr 2020, 23:27
Published
Vulnerability first disclosed
03 Jun 2026, 13:33
Last Modified
Vulnerability information updated
Description
linux vulnerability 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.
Affected Systems
- ubuntu•linux
< 5.4.0-28.32