Ubuntu 4059-2: Squid vulnerabilities

    Date17 Jul 2019
    CategoryUbuntu
    2124
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Squid.
    ==========================================================================
    Ubuntu Security Notice USN-4059-2
    July 17, 2019
    
    squid3 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Several security issues were fixed in Squid.
    
    Software Description:
    - squid3: Web proxy cache server
    
    Details:
    
    USN-4059-1 and USN-3557-1 fixed several vulnerabilities in Squid. This update provides
    the corresponding update for Ubuntu 12.04 ESM.
    
    Original advisory details:
    
     Louis Dion-Marcil discovered that Squid incorrectly handled certain
     Edge Side Includes (ESI) responses. A malicious remote server could
     possibly cause Squid to crash, resulting in a denial of service.
     (CVE-2018-1000024)
    
     Louis Dion-Marcil discovered that Squid incorrectly handled certain
     Edge Side Includes (ESI) responses. A malicious remote server could
     possibly cause Squid to crash, resulting in a denial of service.
     (CVE-2018-1000027)
    
     It was discovered that Squid incorrectly handled the cachemgr.cgi web
     module. A remote attacker could possibly use this issue to conduct
     cross-site scripting (XSS) attacks. (CVE-2019-13345)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 ESM:
      squid3                          3.1.19-1ubuntu3.12.04.9
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4059-2
      https://usn.ubuntu.com/4059-1
      CVE-2018-1000024, CVE-2018-1000027, CVE-2019-13345
    
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