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    CVE-2019-15691

    TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

    Published:Dec 20, 2019
    Last Modified:Nov 21, 2024
    EPS:Dec 26, 2019
    EPSS Score:0.03872
    CVSS Score:7.2

    Affected Products

    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Tigervnc
    Product
    Tigervnc

    Exploits

    https://www.openwall.com/lists/oss-security/2019/12/20/2https://www.openwall.com/lists/oss-security/2019/12/20/2

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    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