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Vulnerability Details : CVE-2020-29369

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.
Publish Date : 2020-11-28 Last Update Date : 2021-02-24
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- CVSS Scores & Vulnerability Types

CVSS Score
6.9
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 362

- Products Affected By CVE-2020-29369

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
2 Hardware Netapp Hci Compute Node - * * * Version Details Vulnerabilities
3 Application Netapp Hci Management Node - * * * Version Details Vulnerabilities
4 Hardware Netapp Hci Storage Node - * * * Version Details Vulnerabilities
5 Application Netapp Solidfire - * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1
Netapp Hci Compute Node 1
Netapp Hci Management Node 1
Netapp Hci Storage Node 1
Netapp Solidfire 1

- References For CVE-2020-29369

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11
https://bugs.chromium.org/p/project-zero/issues/detail?id=2056
https://security.netapp.com/advisory/ntap-20210115-0001/ CONFIRM
http://www.openwall.com/lists/oss-security/2021/02/10/6
MLIST [oss-security] 20210210 Re: CVE-2021-20200: Linux kernel: close race between munmap() and expand_upwards()/downwards()
http://www.openwall.com/lists/oss-security/2021/02/19/8
MLIST [oss-security] 20210219 Re: CVE-2021-20200: Linux kernel: close race between munmap() and expand_upwards()/downwards()

- Metasploit Modules Related To CVE-2020-29369

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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