Vulnerability CVE-2023-4806: Information

Description

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.

Severity: MEDIUM (5.9) Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

URL: https://nvd.nist.gov/vuln/detail/CVE-2023-4806
Published: Sept. 18, 2023
Modified: Jan. 25, 2024
Error type identifier: CWE-416

Fixed packages

Package name
Branch
Fixed in version
Version from repository
Errata ID
Task #
State
glibcsisyphus_riscv642.38.0.44.d37c2b20a4-alt12.38.0.76.e9f05fa1c6-alt1ALT-PU-2024-2632-1-Fixed

References to Advisories, Solutions, and Tools

Hyperlink
Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2237782
  • Issue Tracking
  • Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4806
  • Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/03/5
  • Mailing List
http://www.openwall.com/lists/oss-security/2023/10/03/4
  • Mailing List
http://www.openwall.com/lists/oss-security/2023/10/03/6
  • Mailing List
http://www.openwall.com/lists/oss-security/2023/10/03/8
  • Mailing List
https://security.gentoo.org/glsa/202310-03
  • Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/
  • Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/
  • Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/
  • Mailing List
https://access.redhat.com/errata/RHSA-2023:5453
  • Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5455
  • Third Party Advisory
RHSA-2023:7409
    https://security.netapp.com/advisory/ntap-20240125-0008/

        1. Configuration 1

          cpe:2.3:a:gnu:glibc:2.33:*:*:*:*:*:*:*

          Configuration 2

          cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_server_aus:9.2:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_eus:9.2:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:9.2_ppc64le:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.2_ppc64le:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_s390x:9.2:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:9.2:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_tus:8.8:*:*:*:*:*:*:*
          cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:9.2_aarch64:*:*:*:*:*:*:*
          cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:9.2_s390x:*:*:*:*:*:*:*
          cpe:2.3:a:redhat:codeready_linux_builder_eus_for_power_little_endian:9.0_ppc64le:*:*:*:*:*:*:*
          cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems:9.0_s390x:*:*:*:*:*:*:*
          cpe:2.3:a:redhat:codeready_linux_builder_for_arm64:9.0_aarch64:*:*:*:*:*:*:*
          cpe:2.3:a:redhat:codeready_linux_builder_eus_for_power_little_endian_eus:9.2_ppc64le:*:*:*:*:*:*:*
          cpe:2.3:a:redhat:codeready_linux_builder_eus:9.2:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.2_ppc64le:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:9.2_aarch64:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_arm_64:9.0_aarch64:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0_ppc64le:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.8_ppc64le:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.8_s390x:*:*:*:*:*:*:*
          cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0_s390x:*:*:*:*:*:*:*

          Configuration 3

          cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
          cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
          cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
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