squid: Access Confidential Data -- Remote/Unauthenticated

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4391
             squid -- Vulnerable to HTTP Digest Authentication
                             20 November 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           squid
Publisher:         FreeBSD
Operating System:  FreeBSD
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-18679  

Reference:         ESB-2019.4327
                   ESB-2019.4232

Original Bulletin: 
   http://www.vuxml.org/freebsd/620685d6-0aa3-11ea-9673-4c72b94353b5.html

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squid -- Vulnerable to HTTP Digest Authentication

link: http://www.vuxml.org/freebsd/620685d6-0aa3-11ea-9673-4c72b94353b5.html

squid -- Vulnerable to HTTP Digest Authentication

Affected packages

squid < 4.9

Details

VuXML ID 620685d6-0aa3-11ea-9673-4c72b94353b5

Discovery 2019-11-05

Entry 2019-11-19

Squid Team reports:

Problem Description: Due to incorrect data management Squid is vulnerable to a
information disclosure when processing HTTP Digest Authentication.

Severity: Nonce tokens contain the raw byte value of a pointer which sits 
within heap memory allocation. This information reduces ASLR protections and 
may aid attackers isolating memory areas to target for remote code execution 
attacks.

References

CVE Name CVE-2019-18679

URL http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18679

URL http://www.squid-cache.org/Advisories/SQUID-2019_11.txt

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