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CVE-2023-4813

Date: September 12, 2023

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.

Language: C

Severity Score

Related Resources (11)

https://access.redhat.com/errata/RHSA-2023:7409
https://nvd.nist.gov/vuln/detail/CVE-2023-4813
https://access.redhat.com/security/cve/CVE-2023-4813
https://security.netapp.com/advisory/ntap-20231110-0003/
http://www.openwall.com/lists/oss-security/2023/10/03/8
https://access.redhat.com/errata/RHSA-2023:5455
https://access.redhat.com/errata/RHSA-2023:5453
https://access.redhat.com/errata/RHBA-2024:2413
https://security-tracker.debian.org/tracker/CVE-2023-4813
https://bugzilla.redhat.com/show_bug.cgi?id=2237798
https://www.mend.io/vulnerability-database/CVE-2023-4813

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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