20 November 2019
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4391 squid -- Vulnerable to HTTP Digest Authentication 20 November 2019 =========================================================================== 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to firstname.lastname@example.org and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: email@example.com Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXdTER2aOgq3Tt24GAQjDwBAA0y3mD9CmuUWY0I92aEgIOD7SZ1LJCUCD B+fy1W1p/QVTWJACGbWzsRf7s54Eb4nsDiRpTyP50zgWc33hmJMXTjWVCf7iEVbw pNuuiSg3vr7iKSZXrvGMO9iqi9V8J1GyhVbvM70d/nJjnVgfUrdkRlWxVqCeOeMM PIveDVIKul6Qk0khsId9fPkuATtszubgkiPXFW2K440hX1cH2qOOSq07l813HcIn mvgUXTnNpEWTpGAOyYeLpTbKWyr/Wc+u03AhjuibltQ7BOvJ3QJS2M9yj/4KDK3A x0F2dIO4StNoQQhsfYVuXdjkOJ2lD5+025nDt1UCOGfJxjmC4UQCE3e6ug+OZR5P foI50rchOdf6FuE7Tn1+xGyHjoiPMSCXoN5ftNz+OVX++KUaS9AuH7vH/bmUlIrR CnH2rynokLML2Xw17nwobBSMH8ZLhnwNps6FhY98eaug8v3vG/vtx6+Wk2STumwM VfffgRTiHdh8T6pXATuCPaOZ+hRhW8rS2m/zDWNG0Y0B9XkmG5CDx+jHv8dBPcNk 0Zkfp7vT3hk7/LHQYcmHvDdGzgR1znPk6gA9TLQeHr7lnewjRqL5eRACRxOXYgze N2yjE3Zva1RVb1Us/tGQffOuPK4Eokd3GjNQR77Ly3LXIn6XRFdQkX36l7vlLAIN /pkrYYNVlNA= =j2Rh -----END PGP SIGNATURE-----