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CVE-2020-11884

HIGH
7
CVSS Score
Published: April 29, 2020 at 12:07 PM UTC
Updated: June 17, 2026 at 02:50 AM UTC
35 products affected across 5 vendorsLinux KernelDebian LinuxFedora

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Severity
HIGH7
Exploit prediction
EPSS 0.4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
16.0418.0419.1020.04
Debian Linux· Debiandrupal
95%
10.0
Fedora· Fedora Projectrpm
95%
303132
Linux Kernel· Linux
95%
4.15 ≤ v < 4.19.1194.20 ≤ v < 5.4.365.5 ≤ v < 5.6.8
Affected range stops below 4.19.119, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.36, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.6.8, so it looks safe — our inference, not a vendor statement
A700S Firmware· NetApp
95%
All versions
netapp-a700s (same device)
Active IQ Unified Manager· NetAppnpm
95%
All versions
Bootstrap OS· NetApp
95%
All versions
netapp-hci-compute-node (environment)
Cloud Backup· NetAppdrupal
95%
All versions
Element Software· NetApp
95%
All versions
H300E Firmware· NetAppdrupal
95%
All versions
netapp-h300e (same device)

References (10)

x_refsource_MISCMailing ListPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=215d1f3928713d6eaec67244bcda72105b898000
x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3f777e19d171670ab558a6d5e6b1ac7f9b6c574f
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3TZBP2HINNAX7HKHCOUMIFVQPV6GWMCZ/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AQUVKC3IPUC5B374VVAZV4J5P3GAUGSW/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKVJMS4GQRH5SO35WM5GINCFAGXQ3ZW6/
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20200608-0001/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4342-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4343-1/

CVSS

7HIGH[email protected]
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362

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