Linux Security
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    Linux Security

    Debian: DSA-3625-1: squid3 security update

    Date 22 Jul 2016
    142
    Posted By LinuxSecurity Advisories
    Several security issues have been discovered in the Squid caching proxy. CVE-2016-4051:
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3625-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                       Sebastien Delafond
    July 22, 2016                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : squid3
    CVE ID         : CVE-2016-4051 CVE-2016-4052 CVE-2016-4053 CVE-2016-4054 
                     CVE-2016-4554 CVE-2016-4555 CVE-2016-4556
    Debian Bug     : 823968
    
    Several security issues have been discovered in the Squid caching proxy.
    
    CVE-2016-4051:
    
      CESG and Yuriy M. Kaminskiy discovered that Squid cachemgr.cgi was
      vulnerable to a buffer overflow when processing remotely supplied
      inputs relayed through Squid.
    
    CVE-2016-4052:
    
      CESG discovered that a buffer overflow made Squid vulnerable to a
      Denial of Service (DoS) attack when processing ESI responses.
    
    CVE-2016-4053:
    
      CESG found that Squid was vulnerable to public information
      disclosure of the server stack layout when processing ESI responses.
    
    CVE-2016-4054:
    
      CESG discovered that Squid was vulnerable to remote code execution
      when processing ESI responses.
    
    CVE-2016-4554:
    
      Jianjun Chen found that Squid was vulnerable to a header smuggling
      attack that could lead to cache poisoning and to bypass of
      same-origin security policy in Squid and some client browsers.
    
    CVE-2016-4555, CVE-2016-4556:
    
      "bfek-18" and "@vftable" found that Squid was vulnerable to a Denial
      of Service (DoS) attack when processing ESI responses, due to
      incorrect pointer handling and reference counting.
    
    For the stable distribution (jessie), these problems have been fixed in
    version 3.4.8-6+deb8u3.
    
    For the testing (stretch) and unstable (sid) distributions, these
    problems have been fixed in version 3.5.19-1.
    
    We recommend that you upgrade your squid3 packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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