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Sicherheit: Mehrere Probleme in Squid
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Squid
ID: USN-4981-1
Distribution: Ubuntu
Plattformen: Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, Ubuntu 21.04
Datum: Do, 3. Juni 2021, 23:32
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28662
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33620
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28651
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31808
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31807
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31806
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28652
Applikationen: Squid

Originalnachricht

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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: "ubuntu-security-announce@lists.ubuntu.com"
<ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <83a60eb8-ed86-569f-4b7d-a827933c5efd@canonical.com>
Subject: [USN-4981-1] Squid vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-4981-1
June 03, 2021

squid, squid3 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.04
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in Squid.

Software Description:
- squid: Web proxy cache server
- squid3: Web proxy cache server

Details:

Joshua Rogers discovered that Squid incorrectly handled requests with the
urn: scheme. A remote attacker could possibly use this issue to cause
Squid to consume resources, leading to a denial of service.
(CVE-2021-28651)

Joshua Rogers discovered that Squid incorrectly handled requests to the
Cache Manager API. A remote attacker with access privileges could possibly
use this issue to cause Squid to consume resources, leading to a denial of
service. This issue was only addressed in Ubuntu 20.04 LTS, Ubuntu 20.10,
and Ubuntu 21.04. (CVE-2021-28652)

Joshua Rogers discovered that Squid incorrectly handled certain response
headers. A remote attacker could possibly use this issue to cause Squid to
crash, resulting in a denial of service. This issue was only affected
Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-28662)

Joshua Rogers discovered that Squid incorrectly handled range request
processing. A remote attacker could possibly use this issue to cause Squid
to crash, resulting in a denial of service. (CVE-2021-31806,
CVE-2021-31807, CVE-2021-31808)

Joshua Rogers discovered that Squid incorrectly handled certain HTTP
responses. A remote attacker could possibly use this issue to cause Squid
to crash, resulting in a denial of service. (CVE-2021-33620)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 21.04:
squid 4.13-1ubuntu4.1

Ubuntu 20.10:
squid 4.13-1ubuntu2.2

Ubuntu 20.04 LTS:
squid 4.10-1ubuntu1.4

Ubuntu 18.04 LTS:
squid 3.5.27-1ubuntu1.11

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-4981-1
CVE-2021-28651, CVE-2021-28652, CVE-2021-28662, CVE-2021-31806,
CVE-2021-31807, CVE-2021-31808, CVE-2021-33620

Package Information:
https://launchpad.net/ubuntu/+source/squid/4.13-1ubuntu4.1
https://launchpad.net/ubuntu/+source/squid/4.13-1ubuntu2.2
https://launchpad.net/ubuntu/+source/squid/4.10-1ubuntu1.4
https://launchpad.net/ubuntu/+source/squid3/3.5.27-1ubuntu1.11


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