Ubuntu 4065-1: Squid vulnerabilities

    Date18 Jul 2019
    CategoryUbuntu
    2236
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Squid.
    ==========================================================================
    Ubuntu Security Notice USN-4065-1
    July 18, 2019
    
    squid, squid3 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.04
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in Squid.
    
    Software Description:
    - squid: Web proxy cache server
    - squid3: Web proxy cache server
    
    Details:
    
    It was discovered that Squid incorrectly handled Digest authentication. A
    remote attacker could possibly use this issue to cause Squid to crash,
    resulting in a denial of service. (CVE-2019-12525)
    
    It was discovered that Squid incorrectly handled Basic authentication. A
    remote attacker could use this issue to cause Squid to crash, resulting in
    a denial of service, or possibly execute arbitrary code. This issue only
    affected Ubuntu 19.04. (CVE-2019-12527)
    
    It was discovered that Squid incorrectly handled Basic authentication. A
    remote attacker could possibly use this issue to cause Squid to crash,
    resulting in a denial of service. (CVE-2019-12529)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.04:
      squid                           4.4-1ubuntu2.2
    
    Ubuntu 18.04 LTS:
      squid3                          3.5.27-1ubuntu1.3
    
    Ubuntu 16.04 LTS:
      squid3                          3.5.12-1ubuntu7.8
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4065-1
      CVE-2019-12525, CVE-2019-12527, CVE-2019-12529
    
    Package Information:
      https://launchpad.net/ubuntu/+source/squid/4.4-1ubuntu2.2
      https://launchpad.net/ubuntu/+source/squid3/3.5.27-1ubuntu1.3
      https://launchpad.net/ubuntu/+source/squid3/3.5.12-1ubuntu7.8
    
    
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