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Vulnerability Details : CVE-2021-29626

In FreeBSD 13.0-STABLE before n245117, 12.2-STABLE before r369551, 11.4-STABLE before r369559, 13.0-RC5 before p1, 12.2-RELEASE before p6, and 11.4-RELEASE before p9, copy-on-write logic failed to invalidate shared memory page mappings between multiple processes allowing an unprivileged process to maintain a mapping after it is freed, allowing the process to read private data belonging to other processes or the kernel.
Publish Date : 2021-04-07 Last Update Date : 2022-05-27
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 416

- Products Affected By CVE-2021-29626

# Product Type Vendor Product Version Update Edition Language
1 OS Freebsd Freebsd * * * * Version Details Vulnerabilities
2 OS Freebsd Freebsd 11.4 Beta1 * * Version Details Vulnerabilities
3 OS Freebsd Freebsd 11.4 P4 * * Version Details Vulnerabilities
4 OS Freebsd Freebsd 11.4 P2 * * Version Details Vulnerabilities
5 OS Freebsd Freebsd 11.4 - * * Version Details Vulnerabilities
6 OS Freebsd Freebsd 11.4 P5 * * Version Details Vulnerabilities
7 OS Freebsd Freebsd 11.4 RC2 * * Version Details Vulnerabilities
8 OS Freebsd Freebsd 11.4 RC1 * * Version Details Vulnerabilities
9 OS Freebsd Freebsd 11.4 P1 * * Version Details Vulnerabilities
10 OS Freebsd Freebsd 11.4 P3 * * Version Details Vulnerabilities
11 OS Freebsd Freebsd 12.2 P1 * * Version Details Vulnerabilities
12 OS Freebsd Freebsd 12.2 P2 * * Version Details Vulnerabilities
13 OS Freebsd Freebsd 12.2 - * * Version Details Vulnerabilities
14 OS Freebsd Freebsd 13.0 Beta4 * * Version Details Vulnerabilities
15 OS Freebsd Freebsd 13.0 RC1 * * Version Details Vulnerabilities
16 OS Freebsd Freebsd 13.0 RC2 * * Version Details Vulnerabilities
17 OS Freebsd Freebsd 13.0 Beta1 * * Version Details Vulnerabilities
18 OS Freebsd Freebsd 13.0 RC3 * * Version Details Vulnerabilities
19 OS Freebsd Freebsd 13.0 Beta2 * * Version Details Vulnerabilities
20 OS Freebsd Freebsd 13.0 RC4 * * Version Details Vulnerabilities
21 OS Freebsd Freebsd 13.0 Beta3 * * Version Details Vulnerabilities
22 OS Freebsd Freebsd 13.0 RC5 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Freebsd Freebsd 22

- References For CVE-2021-29626 CONFIRM

- Metasploit Modules Related To CVE-2021-29626

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

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