High severity · published Aug 7, 2023
CVE-2023-4147
A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID
7.8
CVSS
0.6%
EPSS
No
On KEV
Description
A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.9 before 5.10.190; 5.11 before 5.15.124; 5.16 before 6.1.43; 6.2 before 6.4.8; 6.5; 6.5; +1 more · source: NVD
DL
Debian Linux · Debian
10.0; 11.0; 12.0 · source: NVD
EL
Enterprise Linux · Redhat
9.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
9.2 · source: NVD
EL
Enterprise Linux For Real Time · Redhat
9.0 · source: NVD
EL
Enterprise Linux For Real Time For Nfv · Redhat
9.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
9.2 · source: NVD
FE
Fedora · Fedoraproject
38 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4147
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4147
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5069
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5091
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5093
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7382
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7389
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7411
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