CVE-2020-7458 — CRITICAL (9.8)

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	11.4

Related Weaknesses (CWE)

CWE-787

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:18.posix_spawnp.ascPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20200724-0002/Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:18.posix_spawnp.ascPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20200724-0002/Third Party Advisory

FAQ

What is CVE-2020-7458?

CVE-2020-7458 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 o...

How severe is CVE-2020-7458?

CVE-2020-7458 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-7458?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.