CVE-2023-4813

Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 12 Sept 2023, 21:54
Last modified:11 Nov 2025, 19:29

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
v3.1 (cve.org)
EPSS Score
0.3% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Sept 2023, 21:54
Published
Vulnerability first disclosed
11 Nov 2025, 19:29
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.30%• Percentile: 54%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • fedoraproject•fedora

    38

  • gnu•glibc

    < 2.36

  • netapp•active_iq_unified_manager

    na

  • netapp•h300s_firmware

    na

  • netapp•h410c_firmware

    na

  • netapp•h410s_firmware

    na

  • netapp•h500s_firmware

    na

  • netapp•h700s_firmware

    na

  • redhat•enterprise_linux

    8.0 | 9.0

  • redhat•enterprise_linux_eus

    8.8 | 9.2

  • redhat•enterprise_linux_for_ibm_z_systems_eus_s390x

    9.2

  • redhat•enterprise_linux_for_ibm_z_systems_s390x

    9.2

  • redhat•enterprise_linux_for_power_little_endian

    9.2_ppc64le

  • redhat•enterprise_linux_for_power_little_endian_eus

    9.2_ppc64le

  • redhat•enterprise_linux_server_aus

    9.2

  • redhat•enterprise_linux_server_tus

    8.8

References (8)