Bug 1770360 (CVE-2019-18679) - CVE-2019-18679 squid: Information Disclosure issue in HTTP Digest Authentication
Summary: CVE-2019-18679 squid: Information Disclosure issue in HTTP Digest Authentication
Status: NEW
Alias: CVE-2019-18679
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1770361 1771282 1771283
Blocks: 1770363
TreeView+ depends on / blocked
Reported: 2019-11-08 19:52 UTC by Pedro Sampaio
Modified: 2019-11-13 00:50 UTC (History)
4 users (show)

Fixed In Version: squid 4.9
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Last Closed:

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Description Pedro Sampaio 2019-11-08 19:52:57 UTC
Due to incorrect data management Squid is vulnerable to a information disclosure when processing HTTP Digest Authentication.



Comment 1 Pedro Sampaio 2019-11-08 19:53:10 UTC
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1770361]

Comment 3 Huzaifa S. Sidhpurwala 2019-11-12 05:56:26 UTC
External References:


Comment 4 Huzaifa S. Sidhpurwala 2019-11-12 05:56:30 UTC

Remove 'auth_param digest ...' configuration settings from squid.conf.

Comment 5 Huzaifa S. Sidhpurwala 2019-11-12 05:58:50 UTC
As per upstream:  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.

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