Ubuntu 4065-1: Squid vulnerabilities

    Date 18 Jul 2019
    2480
    Posted By LinuxSecurity 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
    
    

    LinuxSecurity Poll

    If you are using full-disk encryption: are you concerned about the resulting performance hit?

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    /main-polls/34-if-you-are-using-full-disk-encryption-are-you-concerned-about-the-resulting-performance-hit?task=poll.vote&format=json
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    [{"id":"120","title":"Yes","votes":"13","type":"x","order":"1","pct":65,"resources":[]},{"id":"121","title":"No ","votes":"7","type":"x","order":"2","pct":35,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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