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    CVE-2022-2588

    It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

    Published:Aug 9, 2022
    Last Modified:May 22, 2025
    EPS:Jan 8, 2024
    EPSS Score:0.58242
    CVSS Score:5.3

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Extras Rt
    Vendor
    Redhat
    Product
    Rhel Tus
    Vendor
    Redhat
    Product
    Rhev Hypervisor

    Exploits

    https://github.com/Markakd/CVE-2022-2588https://github.com/Markakd/CVE-2022-2588https://github.com/ASkyeye/2022-LPE-UAFhttps://github.com/BassamGraini/CVE-2022-2588https://github.com/dom4570/CVE-2022-2588https://github.com/Igr1s-red/CVE-2022-2588https://github.com/konoha279/2022-LPE-UAFhttps://github.com/LSinus/CacheMeIfYouCanhttps://github.com/Markakd/CVE-2022-2588https://github.com/nopgadget/CVE-2022-2588https://github.com/pirenga/2022-LPE-UAFhttps://github.com/veritas501/CVE-2022-2588

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    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…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2588
    https://github.com/Markakd/CVE-2022-2588
    https://lore.kernel.org/netdev/[email protected]/T/#u
    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://ubuntu.com/security/notices/USN-5588-1
    https://www.openwall.com/lists/oss-security/2022/08/09/6
    https://www.zerodayinitiative.com/advisories/ZDI-22-1117/
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2588
    https://github.com/Markakd/CVE-2022-2588
    https://lore.kernel.org/netdev/[email protected]/T/#u
    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://ubuntu.com/security/notices/USN-5588-1
    https://www.openwall.com/lists/oss-security/2022/08/09/6
    https://www.zerodayinitiative.com/advisories/ZDI-22-1117/

    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