UBUNTU-CVE-2017-18075

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    UBUNTU-CVE-2017-18075

    Published: 24 Jan 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-18075

    Summary:

    Details: 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.

    References: https://ubuntu.com/security/CVE-2017-18075, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68, https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68, https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13, https://ubuntu.com/security/notices/USN-3619-1, https://ubuntu.com/security/notices/USN-3619-2, https://www.cve.org/CVERecord?id=CVE-2017-18075

    Affected packages

    Package

    Name: linux-aws

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.4.0-1016.16

    Affected versions

    4.4.0-1002.2
    4.4.0-1003.3
    4.4.0-1005.5
    4.4.0-1006.6
    4.4.0-1009.9
    4.4.0-1010.10
    4.4.0-1011.11
    4.4.0-1012.12
    4.4.0-1014.14

    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