Bug 878389 (CVE-2022-41716)

Summary:	dev-lang/go: Windows environment variable mishandling
Product:	Gentoo Security	Reporter:	John Helmert III <ajak>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED INVALID
Severity:	normal	CC:	williamh
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://groups.google.com/g/golang-announce/c/mbHY1UY3BaM/m/hSpmRzk-AgAJ
Whiteboard:	?? [upstream]
Package list:		Runtime testing required:	---

Description John Helmert III archtester

2022-10-26 17:12:46 UTC

"We plan to issue Go 1.19.3 and Go 1.18.8 on Tuesday, November 1.

These minor releases include PRIVATE security fixes to the standard library."

Comment 1 John Helmert III archtester

2022-11-01 17:35:40 UTC

"These minor releases include 1 security fixes following the security policy <https://go.dev/security>:

-       syscall, os/exec: unsanitized NUL in environment variables

        On Windows, syscall.StartProcess and os/exec.Cmd did not properly check for invalid environment variable values. A malicious environment variable value could exploit this
+behavior to set a value for a different environment variable. For example, the environment variable string "A=B\x00C=D" set the variables "A=B" and "C=D".

        Thanks to RyotaK (https://twitter.com/ryotkak) for reporting this issue.

        This is CVE-2022-41716 and Go issue https://go.dev/issue/56284."

Only Windows.