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    2 vulnerabilities found for grsecurity by opensrcsec

    CVE-2019-5023 (GCVE-0-2019-5023)

    Vulnerability from cvelistv5 – Published: 2019-10-31 20:15 – Updated: 2024-08-04 19:40
    VLAI
    Summary
    An exploitable vulnerability exists in the grsecurity PaX patch for the function read_kmem, in PaX from version pax-linux-4.9.8-test1 to 4.9.24-test7, grsecurity official from version grsecurity-3.1-4.9.8-201702060653 to grsecurity-3.1-4.9.24-201704252333, grsecurity unofficial from version v4.9.25-unofficialgrsec to v4.9.74-unofficialgrsec. PaX adds a temp buffer to the read_kmem function, which is never freed when an invalid address is supplied. This results in a memory leakage that can lead to a crash of the system. An attacker needs to induce a read to /dev/kmem using an invalid address to exploit this vulnerability.
    Severity
    5.9 (Medium)
    CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
    CWE
    • CWE-401 - Improper Release of Memory Before Removing Last Reference
    Assigner
    References
    Impacted products
    Vendor Product Version
    n/a PaX Affected: PaX pax-linux-4.9.24-test7.patch (latest version available to the public) grsecurity grsecurity-3.1-4.9.24-201704252333.patch (latest official version available to the public) v4.9.74-unofficial_grsec (latest unofficial version available to the public)
    Show details on NVD website
    To clipboard 

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            "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0784"
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          "value": "An exploitable vulnerability exists in the grsecurity PaX patch for the function read_kmem, in PaX from version pax-linux-4.9.8-test1 to 4.9.24-test7, grsecurity official from version grsecurity-3.1-4.9.8-201702060653 to grsecurity-3.1-4.9.24-201704252333, grsecurity unofficial from version v4.9.25-unofficialgrsec to v4.9.74-unofficialgrsec. PaX adds a temp buffer to the read_kmem function, which is never freed when an invalid address is supplied. This results in a memory leakage that can lead to a crash of the system. An attacker needs to induce a read to /dev/kmem using an invalid address to exploit this vulnerability."
        }
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    CVE-2019-5023 (GCVE-0-2019-5023)

    Vulnerability from nvd – Published: 2019-10-31 20:15 – Updated: 2024-08-04 19:40
    VLAI
    Summary
    An exploitable vulnerability exists in the grsecurity PaX patch for the function read_kmem, in PaX from version pax-linux-4.9.8-test1 to 4.9.24-test7, grsecurity official from version grsecurity-3.1-4.9.8-201702060653 to grsecurity-3.1-4.9.24-201704252333, grsecurity unofficial from version v4.9.25-unofficialgrsec to v4.9.74-unofficialgrsec. PaX adds a temp buffer to the read_kmem function, which is never freed when an invalid address is supplied. This results in a memory leakage that can lead to a crash of the system. An attacker needs to induce a read to /dev/kmem using an invalid address to exploit this vulnerability.
    Severity
    5.9 (Medium)
    CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
    CWE
    • CWE-401 - Improper Release of Memory Before Removing Last Reference
    Assigner
    References
    Impacted products
    Vendor Product Version
    n/a PaX Affected: PaX pax-linux-4.9.24-test7.patch (latest version available to the public) grsecurity grsecurity-3.1-4.9.24-201704252333.patch (latest official version available to the public) v4.9.74-unofficial_grsec (latest unofficial version available to the public)
    Show details on NVD website
    To clipboard 

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