Findings

CVE-2023-4813

A flaw has been identified in glibc.

Published Sep 12, 2023 · updated Oct 14, 2026 · Red Hat Red Hat Enterprise Linux 8

A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 12, 2023 · NIST NVD

    Detected

    A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.

  2. Oct 14, 2026 · NIST NVD

    Updated

    A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.

Affected

  • cpe fedoraproject/fedora38
  • cpe gnu/glibcversion unspecified
  • cpe netapp/active iq unified managerversion unspecified
  • cpe netapp/h300s firmwareversion unspecified
  • cpe netapp/h500s firmwareversion unspecified
  • cpe redhat/enterprise linux8.0
  • cpe redhat/enterprise linux9.0
  • cpe redhat/enterprise linux eus8.8
  • cpe redhat/enterprise linux eus9.2
  • cpe redhat/enterprise linux for ibm z systems eus s390x9.2
  • cpe redhat/enterprise linux for ibm z systems s390x9.2
  • cpe redhat/enterprise linux for power little endian9.2_ppc64le
  • vendor Red Hat Red Hat Enterprise Linux 8version unspecified
  • vendor Red Hat Red Hat Enterprise Linux 8.6 Extended Update Supportversion unspecified
  • vendor Red Hat Red Hat Enterprise Linux 9version unspecified
  • vendor Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8version unspecified

Sources

  • A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is conf

    vulnerability.circl.lu
  • CVE.orgCVE-2023-4813

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2023-4813

    30-day exploitation probability 1.9%

    first.org
  • NIST NVDCVE-2023-4813

    A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is conf

    nvd.nist.gov

References

CVE-2023-4813 · ZeroDay Findings