Linux Security
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    Ubuntu 4574-1: libseccomp-golang vulnerability

    Date
    53
    Posted By
    A system hardening measure could be bypassed.
    ==========================================================================
    Ubuntu Security Notice USN-4574-1
    October 07, 2020
    
    golang-github-seccomp-libseccomp-golang vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    
    Summary:
    
    A system hardening measure could be bypassed.
    
    Software Description:
    - golang-github-seccomp-libseccomp-golang: a Go-based interface to the libseccomp library
    
    Details:
    
    It was discovered that libseccomp-golang did not properly generate BPFs. If
    a process were running under a restrictive seccomp filter that specified
    multiple syscall arguments, the application could potentially bypass the
    intended restrictions put in place by seccomp.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      golang-github-seccomp-libseccomp-golang-dev  0.0~git20150813.0.1b506fc-2+deb9u1build0.16.04.1
    
    After a standard system update anything that depends on libseccomp-golang needs
    to be rebuilt to make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4574-1
      CVE-2017-18367
    
    Package Information:
      https://launchpad.net/ubuntu/+source/golang-github-seccomp-libseccomp-golang/0.0~git20150813.0.1b506fc-2+deb9u1build0.16.04.1
    
    

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