Medium severity · published Oct 3, 2023
CVE-2023-4732
A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel
4.7
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
through 5.13.19 · source: NVD
CL
Codeready Linux Builder · Redhat
8.0 · source: NVD
CL
Codeready Linux Builder For Arm64 · Redhat
8.0_aarch64 · source: NVD
CL
Codeready Linux Builder For Power Little Endian · Redhat
8.0_ppc64le · source: NVD
EL
Enterprise Linux · Redhat
8.0 · source: NVD
EL
Enterprise Linux For Arm 64 · Redhat
8.0_aarch64 · source: NVD
EL
Enterprise Linux For Ibm Z Systems · Redhat
8.0_s390x · source: NVD
EL
Enterprise Linux For Power Little Endian · Redhat
8.0_ppc64le · source: NVD
EL
Enterprise Linux For Real Time · Redhat
8.0 · source: NVD
EL
Enterprise Linux For Real Time For Nfv · Redhat
8.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4732
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4732
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:6901
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7077
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7539
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0412
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4732
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2236982
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