CVE-2023-4015

    Dashboard / Vulnerabilities / CVE-2023-4015

    CVE-2023-4015

    Published: 6 Sept 2023Last Modified: 12 Aug 2026

    Summary: Use-after-free in Linux kernel's netfilter: nf_tables component

    Details: 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.

    References: https://git.kernel.org, https://kernel.dance/0a771f7b266b02d262900c75f1e175c7fe76fec2, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4015.json, https://nvd.nist.gov/vuln/detail/CVE-2023-4015, https://www.debian.org/security/2023/dsa-5492, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0a771f7b266b02d262900c75f1e175c7fe76fec2

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 6995e2de6891c724bfeb2db33d7b87775f913ad1
    Fixed -2dde18cd1d8fac735875f2e4987f11817cc0bc2c

    Affected versions

    v6.5-rc1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-4015 | CVE-DB