Medium severity · published Sep 12, 2023
CVE-2023-4813
Glibc: potential use-after-free in gaih_inet()
5.9
CVSS
2.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.6 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
AI
Active IQ Unified Manager · Netapp
All versions, or not specified · source: NVD
EL
Enterprise Linux · Redhat
8.0; 9.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
8.8; 9.2 · source: NVD
EL
Enterprise Linux For Ibm Z Systems Eus S390x · Redhat
9.2 · source: NVD
EL
Enterprise Linux For Ibm Z Systems S390x · Redhat
9.2 · source: NVD
EL
Enterprise Linux For Power Little Endian · Redhat
9.2_ppc64le · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4813
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4813
access.redhat.com
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
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