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Vulnerability of Squid cache: denial of service via ESI Response

Synthesis of the vulnerability 

An attacker can generate a fatal error via ESI Response of Squid cache, in order to trigger a denial of service.
Impacted software: openSUSE Leap, Solaris, Squid, SUSE Linux Enterprise Desktop, SLES.
Severity of this computer vulnerability: 2/4.
Creation date: 18/04/2018.
Références of this announce: CERTFR-2018-AVI-192, CVE-2018-1172, openSUSE-SU-2018:1135-1, SQUID-2018:3, SUSE-SU-2018:1365-1, VIGILANCE-VUL-25912, ZDI-18-309.

Description of the vulnerability 

An attacker can generate a fatal error via ESI Response of Squid cache, in order to trigger a denial of service.
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This cybersecurity weakness impacts software or systems such as openSUSE Leap, Solaris, Squid, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this security vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of intranet server.

An attacker with a expert ability can exploit this vulnerability bulletin.

Solutions for this threat 

Squid cache: patch for ESI Response.
A patch is available:
  http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_3.patch

openSUSE Leap 42.3: new squid packages.
New packages are available:
  openSUSE Leap 42.3: squid 3.5.21-15.1

Oracle Solaris: patch for third party software of October 2019 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

SUSE LE 11 SP4: new squid3 packages.
New packages are available:
  SUSE LE 11 SP4: squid3 3.1.23-8.16.37.6.1
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