CVE-2020-11884
HighIn 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.
CVSS 3.1 score
7.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-362CVE-2020-11884 is a Race Condition vulnerability
What is Race Condition?
The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2020-11884 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4342-1/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4343-1/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4345-1/Third Party Advisory
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Debian Securityhttps://www.debian.org/security/2020/dsa-4667Third Party Advisory
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PatchKernel patch commithttps://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=215d1f3928713d6eaec67244bcda72105b898000
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PatchKernel patch commithttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3f777e19d171670ab558a6d5e6b1ac7f9b6c574f
Frequently asked questions
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What is CVE-2020-11884?
CVE-2020-11884 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2020-11884 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2020-11884?
CVE-2020-11884 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2020-11884?
No patch is currently available for CVE-2020-11884. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2020-11884 actively exploited?
No — CVE-2020-11884 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Race Condition (CWE-362)?
The product contains a code sequence that can run concurrently with other code, creating unexpected states. View CWE-362 on MITRE CWE →