| commit | 2a7adf4ccde9734becf41acf8274d1a190f2ec64 | [log] [tgz] |
|---|---|---|
| author | Damien Neil <dneil@google.com> | Mon Oct 17 17:38:29 2022 -0700 |
| committer | Matthew Dempsky <mdempsky@google.com> | Tue Nov 01 16:15:30 2022 +0000 |
| tree | 898877ff89ef6f963f42010266f4cd2e8e7375f2 | |
| parent | 0618956b31e11072fcc21c8e9488a7a731482c0b [diff] |
[release-branch.go1.19] syscall, os/exec: reject environment variables containing NULs Check for and reject environment variables containing NULs. The conventions for passing environment variables to subprocesses cause most or all systems to interpret a NUL as a separator. The syscall package rejects environment variables containing a NUL on most systems, but erroneously did not do so on Windows. This causes an environment variable such as "FOO=a\x00BAR=b" to be interpreted as "FOO=a", "BAR=b". Check for and reject NULs in environment variables passed to syscall.StartProcess on Windows. Add a redundant check to os/exec as extra insurance. Updates #56284 Fixes #56328 Fixes CVE-2022-41716 Change-Id: I2950e2b0cb14ebd26e5629be1521858f66a7d4ae Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1609434 Run-TryBot: Damien Neil <dneil@google.com> Reviewed-by: Tatiana Bradley <tatianabradley@google.com> Reviewed-by: Roland Shoemaker <bracewell@google.com> TryBot-Result: Security TryBots <security-trybots@go-security-trybots.iam.gserviceaccount.com> (cherry picked from commit 845accdebb2772c5344ed0c96df9910f3b02d741) Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1617553 Run-TryBot: Tatiana Bradley <tatianabradley@google.com> Reviewed-by: Damien Neil <dneil@google.com> Reviewed-on: https://go-review.googlesource.com/c/go/+/446879 Reviewed-by: Tatiana Bradley <tatiana@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
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