CVE-2023-4911 (enterprise_linux, fedora, glibc, virtualization)

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.

attacker buffer buffer overflow code cve dynamic environment environment variable fedora glibc gnu issue library loader local overflow permission privileges suid variable virtualization