RHSA-2020:1068 — Security Advisory

An update for squid is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

[Updated 22 October 2020] This update was found to introduce a bug in cachemgr.cgi that could prevent access to the cache manager. This is not a security regression. The fix is being tracked in https://bugzilla.redhat.com/show_bug.cgi?id=1890581

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.

Security Fix(es):

• squid: Incorrect pointer handling when processing ESI Responses can lead to denial of service (CVE-2018-1000024)

• squid: Incorrect pointer handling in HTTP processing and certificate download can lead to denial of service (CVE-2018-1000027)

• squid: XSS via user_name or auth parameter in cachemgr.cgi (CVE-2019-13345)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.