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    CVE-2018-20021

    LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM

    Published:Dec 19, 2018
    Last Modified:Nov 21, 2024
    EPS:Dec 19, 2018
    EPSS Score:0.02642
    CVSS Score:7.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Libvnc Project
    Product
    Libvncserver

    Exploits

    No exploit reference

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    References

    https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/
    https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
    https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
    https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html
    https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
    https://security.gentoo.org/glsa/201908-05
    https://security.gentoo.org/glsa/202006-06
    https://usn.ubuntu.com/3877-1/
    https://usn.ubuntu.com/4547-1/
    https://usn.ubuntu.com/4547-2/
    https://usn.ubuntu.com/4587-1/
    https://www.debian.org/security/2019/dsa-4383
    https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/
    https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
    https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
    https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html
    https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
    https://security.gentoo.org/glsa/201908-05
    https://security.gentoo.org/glsa/202006-06
    https://usn.ubuntu.com/3877-1/
    https://usn.ubuntu.com/4547-1/
    https://usn.ubuntu.com/4547-2/
    https://usn.ubuntu.com/4587-1/
    https://www.debian.org/security/2019/dsa-4383

    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