UBUNTU-CVE-2017-11747

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    UBUNTU-CVE-2017-11747

    Published: 30 Jul 2017Last Modified: 4 Feb 2026
    Upstream:
    CVE-2017-11747
    Aliases:
    USN-4808-1

    Summary:

    Details: main.c in Tinyproxy 1.8.4 and earlier creates a /run/tinyproxy/tinyproxy.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for tinyproxy.pid modification before a root script executes a "kill `cat /run/tinyproxy/tinyproxy.pid`" command.

    References: https://ubuntu.com/security/CVE-2017-11747, https://github.com/tinyproxy/tinyproxy/issues/106, https://ubuntu.com/security/notices/USN-4808-1, https://www.cve.org/CVERecord?id=CVE-2017-11747

    Affected packages

    Package

    Name: tinyproxy

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.8.3-3ubuntu14.04.1~esm1

    Affected versions

    1.8.3-3ubuntu1

    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