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    CVE-2017-18075

    crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.

    Published:Dec 20, 2017
    Last Modified:Nov 21, 2024
    EPS:Jan 24, 2018
    EPSS Score:0.00079
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68
    http://www.securityfocus.com/bid/102813
    https://access.redhat.com/errata/RHSA-2018:2948
    https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68
    https://usn.ubuntu.com/3619-1/
    https://usn.ubuntu.com/3619-2/
    https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68
    http://www.securityfocus.com/bid/102813
    https://access.redhat.com/errata/RHSA-2018:2948
    https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68
    https://usn.ubuntu.com/3619-1/
    https://usn.ubuntu.com/3619-2/
    https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13

    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