CVE-2020-29369
HighAn issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.
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-2020-29369 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-2020-29369 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Release Notes Vendor Advisory
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Third Party Advisory
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PatchKernel patch commithttp://www.openwall.com/lists/oss-security/2021/02/10/6
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PatchKernel patch commithttp://www.openwall.com/lists/oss-security/2021/02/19/8
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PatchKernel patch commithttps://bugs.chromium.org/p/project-zero/issues/detail?id=2056
Frequently asked questions
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What is CVE-2020-29369?
CVE-2020-29369 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-2020-29369 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-2020-29369?
CVE-2020-29369 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-2020-29369?
No patch is currently available for CVE-2020-29369. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2020-29369 actively exploited?
No — CVE-2020-29369 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 →