Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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

2023-09-18T17:15:55.813

Last Modified

2025-04-30T20:15:19.963

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-416
  • Type: Primary
    CWE-416
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu glibc 2.33 Yes
Application redhat codeready_linux_builder_eus 9.2 Yes
Application redhat codeready_linux_builder_eus_for_power_little_endian 9.0_ppc64le Yes
Application redhat codeready_linux_builder_eus_for_power_little_endian_eus 9.2_ppc64le Yes
Application redhat codeready_linux_builder_for_arm64 9.0_aarch64 Yes
Application redhat codeready_linux_builder_for_arm64_eus 9.2_aarch64 Yes
Application redhat codeready_linux_builder_for_ibm_z_systems 9.0_s390x Yes
Application redhat codeready_linux_builder_for_ibm_z_systems_eus 9.2_s390x Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux 9.0 Yes
Operating System redhat enterprise_linux_eus 8.8 Yes
Operating System redhat enterprise_linux_eus 9.2 Yes
Operating System redhat enterprise_linux_for_arm_64 9.0_aarch64 Yes
Operating System redhat enterprise_linux_for_arm_64_eus 9.2_aarch64 Yes
Operating System redhat enterprise_linux_for_ibm_z_systems 8.0_s390x Yes
Operating System redhat enterprise_linux_for_ibm_z_systems_eus 8.8_s390x Yes
Operating System redhat enterprise_linux_for_ibm_z_systems_eus_s390x 9.2 Yes
Operating System redhat enterprise_linux_for_ibm_z_systems_s390x 9.2 Yes
Operating System redhat enterprise_linux_for_power_little_endian 8.0_ppc64le Yes
Operating System redhat enterprise_linux_for_power_little_endian 9.2_ppc64le Yes
Operating System redhat enterprise_linux_for_power_little_endian_eus 8.8_ppc64le Yes
Operating System redhat enterprise_linux_for_power_little_endian_eus 9.2_ppc64le Yes
Operating System redhat enterprise_linux_server_aus 9.2 Yes
Operating System redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.2_ppc64le Yes
Operating System redhat enterprise_linux_tus 8.8 Yes
Operating System fedoraproject fedora 37 Yes
Operating System fedoraproject fedora 38 Yes
Operating System fedoraproject fedora 39 Yes
References