High severity · published Jul 31, 2023
CVE-2023-4004
Kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()
7.8
CVSS
0.9%
EPSS
No
On KEV
Description
A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially 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)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.6 before 5.10.188; 5.11 before 5.15.123; 5.16 before 6.1.42; 6.2 before 6.4.7 · source: NVD
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.2 Advanced Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.2 Telecommunications Update Service · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Telecommunications Update Service · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.6 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9.0 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4004
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4004
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:4961
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:4962
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:4967
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5069
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5091
Broken Link
https://access.redhat.com/errata/RHSA-2023:5093
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