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f13dcd6c65
Fixes the following security issues:
- cmd/go: cgo code injection
The go command may generate unexpected code at build time when using cgo.
This may result in unexpected behavior when running a go program which
uses cgo.
This may occur when running an untrusted module which contains directories
with newline characters in their names. Modules which are retrieved using
the go command, i.e. via "go get", are not affected (modules retrieved
using GOPATH-mode, i.e. GO111MODULE=off, may be affected).
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2023-29402 and Go issue https://go.dev/issue/60167.
- runtime: unexpected behavior of setuid/setgid binaries
The Go runtime didn't act any differently when a binary had the
setuid/setgid bit set. On Unix platforms, if a setuid/setgid binary was
executed with standard I/O file descriptors closed, opening any files
could result in unexpected content being read/written with elevated
prilieges. Similarly if a setuid/setgid program was terminated, either
via panic or signal, it could leak the contents of its registers.
Thanks to Vincent Dehors from Synacktiv for reporting this issue.
This is CVE-2023-29403 and Go issue https://go.dev/issue/60272.
- cmd/go: improper sanitization of LDFLAGS
The go command may execute arbitrary code at build time when using cgo.
This may occur when running "go get" on a malicious module, or when
running any other command which builds untrusted code. This is can by
triggered by linker flags, specified via a "#cgo LDFLAGS" directive.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2023-29404 and CVE-2023-29405 and Go issues
https://go.dev/issue/60305 and https://go.dev/issue/60306.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 620ce32227)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches