CVE-2023-4015 — Use After Free in Kernel

CWE-416 — Use After Free19 documents10 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 90.52%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux KernelLinux KernelDebian Linux
Timeline
PublishedSep 6
Latest updateOct 6

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. On an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used. We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2.

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 Packages3 packages

▶CVEListV5linux/kernel6.4 — 6.5
▶NVDlinux/linux_kernel5.9 — 5.10.190+3
▶Debianlinux/linux_kernel< 6.1.52-1+2

Also affects: Debian Linux 12.0

Patches

Patch: git.kernel.org ↗Patch: kernel.dance ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-5m5v-w78j-286f: A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation↗2023-09-06
▶
OSV
CVE-2023-4015: A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation↗2023-09-06
▶
CVEList
Use-after-free in Linux kernel's netfilter: nf_tables component↗2023-09-06
▶

📋Vendor Advisories

14
Chrome
Long Term Support Channel Update for ChromeOS: CVE-2023-4015↗2023-10-06
▶
Ubuntu
Linux kernel (OEM) vulnerabilities↗2023-09-19
▶
Microsoft
Use-after-free in Linux kernel's netfilter: nf_tables component↗2023-09-12
▶
Red Hat
kernel: use after free in nft_immediate_deactivate↗2023-09-06
▶
Ubuntu
Linux kernel vulnerabilities↗2023-09-06
▶

💬Community

1
Bugzilla
CVE-2023-4015 kernel: use after free in nft_immediate_deactivate↗2023-09-06
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CVE-2023-4015 — Use After Free in Linux Kernel | cvebase