CVE-2020-7458: Buffer Overflow
First published: Thu Jul 09 2020(Updated: )
In FreeBSD 12.1-STABLE before r362281, 11.4-STABLE before r362281, and 11.4-RELEASE before p1, long values in the user-controlled PATH environment variable cause posix_spawnp to write beyond the end of the heap allocated stack possibly leading to arbitrary code execution.
Credit: secteam@freebsd.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD FreeBSD | =11.4 | |
| FreeBSD FreeBSD | =11.4-beta1 | |
| FreeBSD FreeBSD | =12.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-7458?
The severity of CVE-2020-7458 is critical with a CVSS score of 9.8.
What is the affected software for CVE-2020-7458?
The affected software for CVE-2020-7458 is FreeBSD versions 11.4 and 12.1.
How does CVE-2020-7458 impact FreeBSD?
CVE-2020-7458 in FreeBSD can allow an attacker to execute arbitrary code by exploiting a stack-based buffer overflow in posix_spawnp.
Are there any patches or updates available for CVE-2020-7458?
Yes, patches and updates are available for CVE-2020-7458 from the FreeBSD project.
Where can I find more information about CVE-2020-7458?
More information about CVE-2020-7458 can be found in the FreeBSD-SA-20:18 advisory.
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