CVE-2023-4732
4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.18.0-513.5.1.rt7.307.el8_9 < * | unaffected |
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.18.0-513.5.1.el8_9 < * | unaffected |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | 0:4.18.0-372.87.1.el8_6 < * | unaffected |
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | 0:4.18.0-477.36.1.el8_8 < * | unaffected |
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | 0:4.18.0-372.87.1.el8_6 < * | unaffected |
Weaknesses
- CWE-366: Race Condition within a Thread
Workarounds
A possible workaround is disabling Transparent Hugepage
ADP Enrichment
CVE Program Container
Additional References
- https://access.redhat.com/errata/RHSA-2023:6901
- https://access.redhat.com/errata/RHSA-2023:7077
- https://access.redhat.com/errata/RHSA-2023:7539
- https://access.redhat.com/errata/RHSA-2024:0412
- https://access.redhat.com/security/cve/CVE-2023-4732
- https://bugzilla.redhat.com/show_bug.cgi?id=2236982
References
- https://access.redhat.com/errata/RHSA-2023:6901
- https://access.redhat.com/errata/RHSA-2023:7077
- https://access.redhat.com/errata/RHSA-2023:7539
- https://access.redhat.com/errata/RHSA-2024:0412
- https://access.redhat.com/security/cve/CVE-2023-4732
- https://bugzilla.redhat.com/show_bug.cgi?id=2236982
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