CVE-2023-4813
CVE-2023-4813: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.9
Medium [CVE-2023-4813] Glibc: potential use-after-free in gaih_inet
CVE-2023-4813Source published Source updated
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. This issue is only exploitable when the condition detailed in the description is present in the system. However, all glibc versions shipped in Red Hat Enterprise Linux are vulnerable to this issue. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-416. Affected Red Hat products: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 8.6 Extended Update Support; Red Hat Enterprise Linux 9; Red Hat Virtualization 4 for…
- Affected products in this advisory
- Red Hat Enterprise Linux 8.6 Extended Update Support
- Red Hat Enterprise Linux 9
- Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 6
3 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- glibc-0:2.28-225.el8_8.6
- glibc-0:2.28-189.8.el8_6
- glibc-0:2.34-100.el9
- glibc-0:2.34-60.el9_2.7
4 more entries in the full advisory.
- Mitigation guidance
- Removing the "SUCCESS=continue" or "SUCCESS=merge" configuration from the hosts database in /etc/nsswitch.conf will mitigate this vulnerability. Note that, these options are not supported by the hosts database, if they were working before it was because of this bug.
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