CVE-2023-4813

moderate-risk
Published 2023-09-12

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.

Do I need to act?

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0.30% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (18)

Enterprise Linux For Ibm Z Systems S390X

Affected Vendors

Redhat Gnu Fedoraproject Netapp

References (13)

https://access.redhat.com/errata/RHBA-2024:2413
Third Party Advisory https://access.redhat.com/errata/RHSA-2023:5453
Third Party Advisory https://access.redhat.com/errata/RHSA-2023:5455
Third Party Advisory https://access.redhat.com/errata/RHSA-2023:7409
Third Party Advisory https://access.redhat.com/security/cve/CVE-2023-4813
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2237798
http://www.openwall.com/lists/oss-security/2023/10/03/8
Third Party Advisory https://access.redhat.com/errata/RHSA-2023:5453
Third Party Advisory https://access.redhat.com/errata/RHSA-2023:5455
Third Party Advisory https://access.redhat.com/errata/RHSA-2023:7409
Third Party Advisory https://access.redhat.com/security/cve/CVE-2023-4813
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2237798
https://security.netapp.com/advisory/ntap-20231110-0003/
38
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 19/34 · Moderate