CVE-2020-7458
CRITICALFreeBSD Out-of-bounds Write via PATH Environment Variable
Title source: llmDescription
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.
References (2)
Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:18.posix_spawnp.asc
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200724-0002/
Scores
CVSS v3
9.8
EPSS
0.0157
EPSS Percentile
81.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (2)
freebsd/freebsd
11.4 (2 CPE variants)
freebsd/freebsd
12.1
Published
Jul 09, 2020
Tracked Since
Feb 18, 2026