CVE-2020-7452: Buffer Overflow
First published: Tue Apr 28 2020(Updated: )
In FreeBSD 12.1-STABLE before r357490, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r357489, and 11.3-RELEASE before 11.3-RELEASE-p7, incorrect use of a user-controlled pointer in the epair virtual network module allowed vnet jailed privileged users to panic the host system and potentially execute arbitrary code in the kernel.
Credit: secteam@freebsd.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD FreeBSD | =11.3 | |
| FreeBSD FreeBSD | =11.3-p1 | |
| 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 | =12.1 | |
| FreeBSD FreeBSD | =12.1-p1 | |
| FreeBSD FreeBSD | =12.1-p2 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Frequently Asked Questions
What is the severity of CVE-2020-7452?
The severity of CVE-2020-7452 is critical with a CVSS score of 9.1.
How does CVE-2020-7452 affect FreeBSD?
CVE-2020-7452 affects FreeBSD versions 11.3 and 12.1.
What is the impact of CVE-2020-7452?
The impact of CVE-2020-7452 is that vnet jailed privileged users can potentially panic the host system.
How can I fix CVE-2020-7452?
To fix CVE-2020-7452, you should install the appropriate FreeBSD updates as mentioned in the FreeBSD Security Advisory.
Where can I find more information about CVE-2020-7452?
You can find more information about CVE-2020-7452 in the FreeBSD Security Advisory.
- collector/nvd-index
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/type
- agent/description
- agent/event
- agent/last-modified-date
- agent/remedy
- agent/first-publish-date
- agent/softwarecombine
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/freebsd
- canonical/freebsd freebsd
- version/freebsd freebsd/11.3
- version/freebsd freebsd/11.3-p1
- 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/12.1
- version/freebsd freebsd/12.1-p1
- version/freebsd freebsd/12.1-p2