CVE-2023-4911
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.
- CVSS 3.1
- 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 64% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-25)
- CISA KEV
- listed 2023-11-21, due 2023-12-12
- CWEs
- CWE-787, CWE-122
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- debian:debian_linux
- fedoraproject:fedora
- gnu:glibc
- netapp:bootstrap_os
- netapp:h300s_firmware
- netapp:h410c_firmware
- netapp:h410s_firmware
- netapp:h500s_firmware
- netapp:h700s_firmware
- netapp:ontap_select_deploy_administration_utility
- redhat:codeready_linux_builder
- redhat:codeready_linux_builder_eus
- redhat:codeready_linux_builder_for_arm64
- redhat:codeready_linux_builder_for_arm64_eus
- redhat:codeready_linux_builder_for_ibm_z_systems
- redhat:codeready_linux_builder_for_ibm_z_systems_eus
- redhat:codeready_linux_builder_for_power_little_endian
- redhat:codeready_linux_builder_for_power_little_endian_eus
- redhat:enterprise_linux
- redhat:enterprise_linux_eus
- redhat:enterprise_linux_for_arm_64
- redhat:enterprise_linux_for_arm_64_eus
- redhat:enterprise_linux_for_ibm_z_systems
- redhat:enterprise_linux_for_ibm_z_systems_eus
- redhat:enterprise_linux_for_ibm_z_systems_eus_s390x
- redhat:enterprise_linux_for_power_big_endian_eus
- redhat:enterprise_linux_for_power_little_endian
- redhat:enterprise_linux_for_power_little_endian_eus
- redhat:enterprise_linux_server_aus
- redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
- redhat:enterprise_linux_server_tus
- redhat:enterprise_linux_update_services_for_sap_solutions
- redhat:virtualization
- redhat:virtualization_host
- siemens:simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware
- siemens:simatic_s7-1500_cpu_1518f-4_pn\/dp_mfp_firmware
- siemens:simatic_s7-1500_tm_mfp_firmware
- siemens:siplus_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware