RedHat: RHSA-2020-4082:01 Important: squid security update
Summary
Squid is a high-performance proxy caching server for web clients,
supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* squid: HTTP Request Smuggling could result in cache poisoning
(CVE-2020-15810)
* squid: HTTP Request Splitting could result in cache poisoning
(CVE-2020-15811)
* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)
* squid: Improper input validation issues in HTTP Request processing
(CVE-2020-8449)
* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)
* squid: Request smuggling and poisoning attack against the HTTP cache
(CVE-2020-15049)
* squid: Improper input validation could result in a DoS (CVE-2020-24606)
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.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing this update, the squid service will be restarted
automatically.
References
https://access.redhat.com/security/cve/CVE-2019-12528 https://access.redhat.com/security/cve/CVE-2020-8449 https://access.redhat.com/security/cve/CVE-2020-8450 https://access.redhat.com/security/cve/CVE-2020-15049 https://access.redhat.com/security/cve/CVE-2020-15810 https://access.redhat.com/security/cve/CVE-2020-15811 https://access.redhat.com/security/cve/CVE-2020-24606 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux Server (v. 7):
Source:
squid-3.5.20-17.el7_9.4.src.rpm
ppc64:
squid-3.5.20-17.el7_9.4.ppc64.rpm
squid-debuginfo-3.5.20-17.el7_9.4.ppc64.rpm
squid-migration-script-3.5.20-17.el7_9.4.ppc64.rpm
ppc64le:
squid-3.5.20-17.el7_9.4.ppc64le.rpm
squid-debuginfo-3.5.20-17.el7_9.4.ppc64le.rpm
squid-migration-script-3.5.20-17.el7_9.4.ppc64le.rpm
s390x:
squid-3.5.20-17.el7_9.4.s390x.rpm
squid-debuginfo-3.5.20-17.el7_9.4.s390x.rpm
squid-migration-script-3.5.20-17.el7_9.4.s390x.rpm
x86_64:
squid-3.5.20-17.el7_9.4.x86_64.rpm
squid-debuginfo-3.5.20-17.el7_9.4.x86_64.rpm
squid-migration-script-3.5.20-17.el7_9.4.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
squid-debuginfo-3.5.20-17.el7_9.4.ppc64.rpm
squid-sysvinit-3.5.20-17.el7_9.4.ppc64.rpm
ppc64le:
squid-debuginfo-3.5.20-17.el7_9.4.ppc64le.rpm
squid-sysvinit-3.5.20-17.el7_9.4.ppc64le.rpm
s390x:
squid-debuginfo-3.5.20-17.el7_9.4.s390x.rpm
squid-sysvinit-3.5.20-17.el7_9.4.s390x.rpm
x86_64:
squid-debuginfo-3.5.20-17.el7_9.4.x86_64.rpm
squid-sysvinit-3.5.20-17.el7_9.4.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
squid-3.5.20-17.el7_9.4.src.rpm
x86_64:
squid-3.5.20-17.el7_9.4.x86_64.rpm
squid-debuginfo-3.5.20-17.el7_9.4.x86_64.rpm
squid-migration-script-3.5.20-17.el7_9.4.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
squid-debuginfo-3.5.20-17.el7_9.4.x86_64.rpm
squid-sysvinit-3.5.20-17.el7_9.4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
Bugs Fixed
1798534 - CVE-2019-12528 squid: Information Disclosure issue in FTP Gateway
1798540 - CVE-2020-8449 squid: Improper input validation issues in HTTP Request processing
1798552 - CVE-2020-8450 squid: Buffer overflow in reverse-proxy configurations
1852550 - CVE-2020-15049 squid: Request smuggling and poisoning attack against the HTTP cache
1871700 - CVE-2020-15810 squid: HTTP Request Smuggling could result in cache poisoning
1871702 - CVE-2020-15811 squid: HTTP Request Splitting could result in cache poisoning
1871705 - CVE-2020-24606 squid: Improper input validation could result in a DoS