Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2023-4806

A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the nss_gethostbyname2_r and nss_getcanonname_r hooks without implementing the nss*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags.

  • Published: Sep 18, 2023
  • Updated: May 10, 2024
  • CVE: CVE-2023-4806
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.9
  • AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWEs:

Software From Fixed in
gnu / glibc 2.33 2.33.x
redhat / enterprise_linux 7.0 7.0.x
redhat / enterprise_linux 8.0 8.0.x
redhat / enterprise_linux 9.0 9.0.x
redhat / enterprise_linux_eus 8.8 8.8.x
redhat / enterprise_linux_server_aus 9.2 9.2.x
redhat / enterprise_linux_eus 9.2 9.2.x
redhat / enterprise_linux_for_power_little_endian 9.2_ppc64le 9.2_ppc64le.x
redhat / enterprise_linux_for_power_little_endian_eus 9.2_ppc64le 9.2_ppc64le.x
redhat / enterprise_linux_for_ibm_z_systems_s390x 9.2 9.2.x
redhat / enterprise_linux_for_ibm_z_systems_eus_s390x 9.2 9.2.x
redhat / enterprise_linux_tus 8.8 8.8.x
redhat / codeready_linux_builder_for_arm64_eus 9.2_aarch64 9.2_aarch64.x
redhat / codeready_linux_builder_for_ibm_z_systems_eus 9.2_s390x 9.2_s390x.x
redhat / codeready_linux_builder_eus_for_power_little_endian 9.0_ppc64le 9.0_ppc64le.x
redhat / codeready_linux_builder_for_ibm_z_systems 9.0_s390x 9.0_s390x.x
redhat / codeready_linux_builder_for_arm64 9.0_aarch64 9.0_aarch64.x
redhat / codeready_linux_builder_eus_for_power_little_endian_eus 9.2_ppc64le 9.2_ppc64le.x
redhat / codeready_linux_builder_eus 9.2 9.2.x
redhat / enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.2_ppc64le 9.2_ppc64le.x
redhat / enterprise_linux_for_arm_64_eus 9.2_aarch64 9.2_aarch64.x
redhat / enterprise_linux_for_arm_64 9.0_aarch64 9.0_aarch64.x
redhat / enterprise_linux_for_power_little_endian 8.0_ppc64le 8.0_ppc64le.x
redhat / enterprise_linux_for_power_little_endian_eus 8.8_ppc64le 8.8_ppc64le.x
redhat / enterprise_linux_for_ibm_z_systems_eus 8.8_s390x 8.8_s390x.x
redhat / enterprise_linux_for_ibm_z_systems 8.0_s390x 8.0_s390x.x
fedoraproject / fedora 37 37.x
fedoraproject / fedora 38 38.x
fedoraproject / fedora 39 39.x