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Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. Calling wordexp with WRDE_APPEND in the GNU C Library version 2.0 to version 2.43 can cause the interface to return invalid memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
Zig is not affected by this vulnerability. While `zig.spec` declares `Provides: bundled(glibc) = 2.43` to account for embedded headers and ABI symbol metadata, Zig does not bundle or compile the GNU C Library implementation of the affected routine. Specifically: - Zig only ships glibc ABI symbol tables (`abilists`) to generate compile-time dynamic linking stubs (`.so`), generic headers, and minimal C runtime startup objects (`crt1.o`, `elf-init`, `stat` shims). - Zig compiler binaries and generated executables dynamically link against the host/target system's runtime `libc.so.6`. Closing as NOTABUG.