RHSA-2021:4292: Red Hat Security Advisory: squid:4 security, bug fix, and enhancement update

An update for the squid:4 module is now available for Red Hat Enterprise Linux 8. 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.Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. The following packages have been upgraded to a later upstream version: squid (4.15). (BZ#1964384) Security Fix(es):

• squid: denial of service in URN processing (CVE-2021-28651)
• squid: denial of service issue in Cache Manager (CVE-2021-28652)
• squid: denial of service in HTTP response processing (CVE-2021-28662)
• squid: improper input validation in HTTP Range header (CVE-2021-31806)
• squid: incorrect memory management in HTTP Range header (CVE-2021-31807)
• squid: integer overflow in HTTP Range header (CVE-2021-31808)
• squid: denial of service in HTTP response processing (CVE-2021-33620) 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 8.5 Release Notes linked from the References section. Related CVEs:
• CVE-2021-28651: squid: denial of service in URN processing
• CVE-2021-28652: squid: denial of service issue in Cache Manager
• CVE-2021-28662: squid: denial of service in HTTP response processing
• CVE-2021-31806: squid: improper input validation in HTTP Range header
• CVE-2021-31807: squid: incorrect memory management in HTTP Range header
• CVE-2021-31808: squid: integer overflow in HTTP Range header
• CVE-2021-33620: squid: denial of service in HTTP response processing