Ubuntu 4213-1: Squid vulnerabilities

    Date04 Dec 2019
    CategoryUbuntu
    92
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Squid.
    ==========================================================================
    Ubuntu Security Notice USN-4213-1
    December 04, 2019
    
    squid, squid3 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.10
    - 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:
    
    Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly
    handled certain URN requests. A remote attacker could possibly use this
    issue to bypass access checks and access restricted servers. This issue was
    only addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-12523)
    
    Jeriko One discovered that Squid incorrectly handed URN responses. A remote
    attacker could use this issue to cause Squid to crash, resulting in a
    denial of service, or possibly execute arbitrary code. (CVE-2019-12526)
    
    Alex Rousskov discovered that Squid incorrectly handled certain strings. A
    remote attacker could possibly use this issue to cause Squid to crash,
    resulting in a denial of service. This issue only affected Ubuntu 19.04.
    (CVE-2019-12854)
    
    Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly
    handled certain input. 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 was only addressed in Ubuntu 19.04 and Ubuntu
    19.10. (CVE-2019-18676)
    
    Kristoffer Danielsson discovered that Squid incorrectly handled certain
    messages. This issue could result in traffic being redirected to origins
    it should not be delivered to. (CVE-2019-18677)
    
    Régis Leroy discovered that Squid incorrectly handled certain HTTP
    request headers. A remote attacker could use this to smuggle HTTP requests
    and corrupt caches with arbitrary content. (CVE-2019-18678)
    
    David Fifield discovered that Squid incorrectly handled HTTP Digest
    Authentication. A remote attacker could possibly use this issue to obtain
    pointer contents and bypass ASLR protections. (CVE-2019-18679)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.10:
      squid                           4.8-1ubuntu2.1
    
    Ubuntu 19.04:
      squid                           4.4-1ubuntu2.3
    
    Ubuntu 18.04 LTS:
      squid3                          3.5.27-1ubuntu1.4
    
    Ubuntu 16.04 LTS:
      squid3                          3.5.12-1ubuntu7.9
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4213-1
      CVE-2019-12523, CVE-2019-12526, CVE-2019-12854, CVE-2019-18676,
      CVE-2019-18677, CVE-2019-18678, CVE-2019-18679
    
    Package Information:
      https://launchpad.net/ubuntu/+source/squid/4.8-1ubuntu2.1
      https://launchpad.net/ubuntu/+source/squid/4.4-1ubuntu2.3
      https://launchpad.net/ubuntu/+source/squid3/3.5.27-1ubuntu1.4
      https://launchpad.net/ubuntu/+source/squid3/3.5.12-1ubuntu7.9
    
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"65","type":"x","order":"1","pct":57.52,"resources":[]},{"id":"88","title":"Should be more technical","votes":"15","type":"x","order":"2","pct":13.27,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"33","type":"x","order":"3","pct":29.2,"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
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.