CVE-2020-29369 Detail

Current Description

An 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.0 HIGH
Vector:  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2021/02/10/6 Mailing List  Patch  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2021/02/19/8 Mailing List  Patch  Third Party Advisory 
https://bugs.chromium.org/p/project-zero/issues/detail?id=2056 Exploit  Issue Tracking  Patch  Third Party Advisory 
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11 Release Notes  Vendor Advisory 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c Patch  Vendor Advisory 
https://security.netapp.com/advisory/ntap-20210115-0001/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-29369
NVD Published Date:
11/28/2020
NVD Last Modified:
02/24/2021
Source:
MITRE