CVE-2023-4147

CWE-416 — Use After Free8 documents8 sources
Severity
7.8HIGH
EPSS
0.2%
top 63.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
Linux Linux KernelDebian Debian LinuxFedoraproject Fedora+5 more
Timeline
PublishedAug 7
Latest updateAug 8

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:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶NVDlinux/linux_kernel5.9 — 5.10.190+4
▶Debianlinux< 5.10.191-1+3

Also affects: Debian Linux 10.0, 11.0, 12.0, Enterprise Linux 9.0, 9.2, Fedora 38

Patches

Patch: access.redhat.com ↗Patch: bugzilla.redhat.com ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

3
CVEList
Kernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-free↗2023-08-07
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GHSA
GHSA-pcv9-72q8-27vc: A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID↗2023-08-07
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OSV
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↗2023-08-07
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📋Vendor Advisories

4
Microsoft
Kernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-free↗2023-08-08
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Red Hat
kernel: netfilter: nf_tables_newrule when adding a rule with NFTA_RULE_CHAIN_ID leads to use-after-free↗2023-07-23
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Oracle
Oracle Oracle Communications Risk Matrix: Configuration (Quarkus) — CVE-2022-4147↗2023-01-15
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Debian
CVE-2023-4147: linux - A use-after-free flaw was found in the Linux kernel’s Netfilter functionality wh...↗2023
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