Ubuntu 4288-2: ppp vulnerability

    Date 02 Mar 2020
    241
    Posted By LinuxSecurity Advisories
    ppp could be made to crash or run programs if it received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-4288-2
    March 02, 2020
    
    ppp vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 ESM
    - Ubuntu 12.04 ESM
    
    Summary:
    
    ppp could be made to crash or run programs if it received specially crafted network traffic.
    
    Software Description:
    - ppp: Point-to-Point Protocol (PPP)
    
    Details:
    
    USN-4288-1 fixed a vulnerability in ppp. This update provides
    the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
    
    Original advisory details:
    
     It was discovered that ppp incorrectly handled certain rhostname values. A
     remote attacker could use this issue to cause ppp to crash, resulting in a
     denial of service, or possibly execute arbitrary code.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 ESM:
      ppp                             2.4.5-5.1ubuntu2.3+esm1
    
    Ubuntu 12.04 ESM:
      ppp                             2.4.5-5ubuntu1.3
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4288-2
      https://usn.ubuntu.com/4288-1
      CVE-2020-8597
    

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