Strix
26.1K

CVE-2020-11884

HIGHCVSS 7/10EPSS 0.40%

Last modified

CVE-2020-11884 is a high-severity vulnerability rated 7/10 on the CVSS scale. In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur.

Metrics

CVSS 3.1
7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.40%

31.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 4.15, < 4.19.119
LinuxLinux Kernel>= 4.20, < 5.4.36
LinuxLinux Kernel>= 5.5, < 5.6.8
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux19.10
CanonicalUbuntu Linux20.04
DebianDebian Linux10.0
FedoraprojectFedora30
FedoraprojectFedora31
FedoraprojectFedora32
NetappActive Iq Unified ManagerAll versions
NetappCloud BackupAll versions
NetappElement SoftwareAll versions
NetappHci Management NodeAll versions
NetappSolidfireAll versions
NetappSteelstore Cloud Integrated StorageAll versions
NetappSolidfire Baseboard Management ControllerAll versions
NetappBootstrap OsAll versions
NetappA700s FirmwareAll versions
NetappH300s FirmwareAll versions
NetappH500s FirmwareAll versions
NetappH700s FirmwareAll versions
NetappH300e FirmwareAll versions
NetappH500e FirmwareAll versions
NetappH700e FirmwareAll versions
NetappH410s FirmwareAll versions
NetappH410c FirmwareAll versions
NetappH610c FirmwareAll versions
NetappH610s FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-11884?
In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur.
How severe is CVE-2020-11884?
CVE-2020-11884 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2020-11884?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11884?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST