Vulnerability in Red Hat Enterprise Linux 6
CVE-2023-4732
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.
EPSS: 0.000 (2.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:4.18.0-513.5.1.rt7.307.el8_9, 0:4.18.0-513.5.1.el8_9
- Red Hat Enterprise Linux 8.6 Extended Update Support — versions 0:4.18.0-372.87.1.el8_6
- Red Hat Enterprise Linux 8.8 Extended Update Support — versions 0:4.18.0-477.36.1.el8_8
- Red Hat Enterprise Linux 9
- Red Hat Virtualization 4 For Enterprise Linux 8 — versions 0:4.18.0-372.87.1.el8_6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- RHSA-2023:6901 (vendor-advisory, x_refsource_REDHAT)
- RHSA-2023:7077 (vendor-advisory, x_refsource_REDHAT)
- RHSA-2023:7539 (vendor-advisory, x_refsource_REDHAT)
- RHSA-2024:0412 (vendor-advisory, x_refsource_REDHAT)
- access.redhat.com/security/cve/CVE-2023-4732 (vdb-entry, x_refsource_REDHAT)
- RHBZ#2236982 (issue-tracking, x_refsource_REDHAT)
Frequently asked questions
- What is CVE-2023-4732?
- CVE-2023-4732 is a medium-severity vulnerability in Red Hat Enterprise Linux 6, classified under Race Condition within a Thread. CVSS score: 4.7/10. Published 2023-10-03.
- How severe is CVE-2023-4732?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2023-4732 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.