Description
Due to unsanitized NUL values, attackers may be able to maliciously set environment variables on Windows. In syscall.StartProcess and os/exec.Cmd, invalid environment variable values containing NUL values are not properly checked for. A malicious environment variable value can exploit this behavior to set a value for a different environment variable. For example, the environment variable string "A=B\x00C=D" sets the variables "A=B" and "C=D".
References (5)
Core 5
Core References
Patch, Vendor Advisory
https://go.dev/cl/446916
Issue Tracking, Patch, Vendor Advisory
https://go.dev/issue/56284
Patch, Release Notes, Vendor Advisory
https://groups.google.com/g/golang-announce/c/mbHY1UY3BaM/m/hSpmRzk-AgAJ
Vendor Advisory
https://pkg.go.dev/vuln/GO-2022-1095
Vendor Advisory
https://security.netapp.com/advisory/ntap-20230120-0007/
Scores
CVSS v3
7.5
EPSS
0.0001
EPSS Percentile
2.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
Status
published
Products (1)
golang/go
< 1.18.8
Published
Nov 02, 2022
Tracked Since
Feb 18, 2026