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    CVE-2022-2586

    It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.

    Published:Aug 9, 2022
    Last Modified:Aug 20, 2026
    EPS:Jan 8, 2024
    EPSS Score:0.10458
    CVSS Score:5.3

    CISA Notification

    Description

    It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.

    Required Action:

    Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Jul 17, 2024
    786 days ago
    Alert Date
    Jun 26, 2024
    807 days ago

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhev Hypervisor
    Vendor
    The Linux Kernel Organization
    Product
    Linux

    Exploits

    https://www.vicarius.io/vsociety/posts/use-after-free-vulnerability-linked-chain-between-nft-tables-cve-2022-2586https://github.com/aels/CVE-2022-2586-LPEhttps://github.com/lanleft/CVE-2022-2586https://github.com/sniper404ghostxploit/CVE-2022-2586

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
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    References

    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586
    https://lore.kernel.org/netfilter-devel/[email protected]/T/#t
    https://ubuntu.com/security/notices/USN-5557-1
    https://ubuntu.com/security/notices/USN-5560-1
    https://ubuntu.com/security/notices/USN-5560-2
    https://ubuntu.com/security/notices/USN-5562-1
    https://ubuntu.com/security/notices/USN-5564-1
    https://ubuntu.com/security/notices/USN-5565-1
    https://ubuntu.com/security/notices/USN-5566-1
    https://ubuntu.com/security/notices/USN-5567-1
    https://ubuntu.com/security/notices/USN-5582-1
    https://www.openwall.com/lists/oss-security/2022/08/09/5
    https://www.zerodayinitiative.com/advisories/ZDI-22-1118/
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586
    https://lore.kernel.org/netfilter-devel/[email protected]/T/#t
    https://ubuntu.com/security/notices/USN-5557-1
    https://ubuntu.com/security/notices/USN-5560-1
    https://ubuntu.com/security/notices/USN-5560-2
    https://ubuntu.com/security/notices/USN-5562-1
    https://ubuntu.com/security/notices/USN-5564-1
    https://ubuntu.com/security/notices/USN-5565-1
    https://ubuntu.com/security/notices/USN-5566-1
    https://ubuntu.com/security/notices/USN-5567-1
    https://ubuntu.com/security/notices/USN-5582-1
    https://www.openwall.com/lists/oss-security/2022/08/09/5
    https://www.vicarius.io/vsociety/posts/use-after-free-vulnerability-linked-chain-between-nft-tables-cve-2022-2586
    https://www.zerodayinitiative.com/advisories/ZDI-22-1118/
    https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-2586

    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