CVE-2020-7460: FreeBSD Kernel sendmsg System Call Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability
First published: Thu Aug 06 2020(Updated: )
In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.
Credit: secteam@freebsd.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD FreeBSD | =11.3 | |
| FreeBSD FreeBSD | =11.3-p1 | |
| FreeBSD FreeBSD | =11.3-p10 | |
| FreeBSD FreeBSD | =11.3-p11 | |
| FreeBSD FreeBSD | =11.3-p2 | |
| FreeBSD FreeBSD | =11.3-p3 | |
| FreeBSD FreeBSD | =11.3-p4 | |
| FreeBSD FreeBSD | =11.3-p5 | |
| FreeBSD FreeBSD | =11.3-p6 | |
| FreeBSD FreeBSD | =11.3-p7 | |
| FreeBSD FreeBSD | =11.3-p8 | |
| FreeBSD FreeBSD | =11.3-p9 | |
| FreeBSD FreeBSD | =11.4 | |
| FreeBSD FreeBSD | =11.4-p1 | |
| FreeBSD FreeBSD | =12.1 | |
| FreeBSD FreeBSD | =12.1-p1 | |
| FreeBSD FreeBSD | =12.1-p2 | |
| FreeBSD FreeBSD | =12.1-p3 | |
| FreeBSD FreeBSD | =12.1-p4 | |
| FreeBSD FreeBSD | =12.1-p6 | |
| FreeBSD FreeBSD | =12.1-p7 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-7460?
CVE-2020-7460 is a privilege escalation vulnerability in the FreeBSD Kernel.
How does CVE-2020-7460 impact FreeBSD Kernel?
CVE-2020-7460 allows local attackers to escalate privileges on affected installations of FreeBSD Kernel.
What is the severity of CVE-2020-7460?
CVE-2020-7460 has a severity score of 8.8 (high).
How can CVE-2020-7460 be fixed?
To fix CVE-2020-7460, users should apply the necessary patches or updates provided by FreeBSD.
Where can I find more information about CVE-2020-7460?
You can find more information about CVE-2020-7460 at the following sources: FreeBSD Security Advisories, NetApp Security Advisory, and Zero Day Initiative Advisories.
- collector/zdi-advisory
- alias/ZDI-20-949
- alias/ZDI-CAN-11543
- alias/CVE-2020-7460
- collector/nvd-index
- agent/weakness
- agent/severity
- agent/references
- agent/title
- agent/author
- agent/tags
- agent/type
- agent/event
- agent/description
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- vendor/freebsd
- canonical/freebsd kernel
- canonical/freebsd freebsd
- version/freebsd freebsd/11.3
- version/freebsd freebsd/11.3-p1
- version/freebsd freebsd/11.3-p10
- version/freebsd freebsd/11.3-p11
- version/freebsd freebsd/11.3-p2
- version/freebsd freebsd/11.3-p3
- version/freebsd freebsd/11.3-p4
- version/freebsd freebsd/11.3-p5
- version/freebsd freebsd/11.3-p6
- version/freebsd freebsd/11.3-p7
- version/freebsd freebsd/11.3-p8
- version/freebsd freebsd/11.3-p9
- version/freebsd freebsd/11.4
- version/freebsd freebsd/11.4-p1
- version/freebsd freebsd/12.1
- version/freebsd freebsd/12.1-p1
- version/freebsd freebsd/12.1-p2
- version/freebsd freebsd/12.1-p3
- version/freebsd freebsd/12.1-p4
- version/freebsd freebsd/12.1-p6
- version/freebsd freebsd/12.1-p7