CVE-2023-4813
Glibc: potential use-after-free in gaih_inet()
- State
- Published
- Severity
- 5.9 Medium
- Published
- Sep 12, 2023
- Updated
- Oct 30, 2026
- Reserved
- Sep 7, 2023
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 6Red Hat | |
Red Hat Enterprise Linux 6Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 7Red Hat |
References
- RHSA-2023:5453vendor-advisory
- RHSA-2023:5455vendor-advisory
- RHSA-2023:7409vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-4813vdb-entry
- RHBZ#2237798issue-tracking
- http://www.openwall.com/lists/oss-security/2023/10/03/8
- https://security.netapp.com/advisory/ntap-20231110-0003/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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