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Red Hat: RHSA-2020-3623 Important: Squid:4 HTTP Request Threats

red hat
Calendar Grey September 3, 2020
Dist Redhat Esm H88
Crucial vulnerability patch issued for squid:4 affecting Red Hat Enterprise Linux 8. Urgent measures advised.
An update for the squid:4 module is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.1 E...

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.

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)
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.

Topics%20covered

Topics Covered

security advisory Red Hat important squid cache poisoning HTTP request smuggling HTTP request splitting

References

https://access.redhat.com/security/cve/CVE-2020-15810 https://access.redhat.com/security/cve/CVE-2020-15811 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream E4S (v. 8.0):
Source: libecap-1.0.1-2.module+el8.0.0+4045+70edde92.src.rpm squid-4.4-5.module+el8.0.0+7838+974c4845.2.src.rpm
aarch64: libecap-1.0.1-2.module+el8.0.0+4045+70edde92.aarch64.rpm libecap-debuginfo-1.0.1-2.module+el8.0.0+4045+70edde92.aarch64.rpm libecap-debugsource-1.0.1-2.module+el8.0.0+4045+70edde92.aarch64.rpm libecap-devel-1.0.1-2.module+el8.0.0+4045+70edde92.aarch64.rpm squid-4.4-5.module+el8.0.0+7838+974c4845.2.aarch64.rpm squid-debuginfo-4.4-5.module+el8.0.0+7838+974c4845.2.aarch64.rpm squid-debugsource-4.4-5.module+el8.0.0+7838+974c4845.2.aarch64.rpm
ppc64le: libecap-1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le.rpm libecap-debuginfo-1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le.rpm libecap-debugsource-1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le.rpm libecap-devel-1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le.rpm squid-4.4-5.module+el8.0.0+7838+974c4845.2.ppc64le.rpm squid-debuginfo-4.4-5.module+el8.0.0+7838+974c4845.2.ppc64le.rpm squid-debugsource-4.4-5.module+el8.0.0+7838+974c4845.2.ppc64le.rpm
s390x: libecap-1.0.1-2.module+el8.0.0+4045+70edde92.s390x.rpm libecap-debuginfo-1.0.1-2.module+el8.0.0+4045+70edde92.s390x.rpm libecap-debugsource-1.0.1-2.module+el8.0.0+4045+70edde92.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3623-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3623
Issue date: 2020-09-03

Topic

An update for the squid:4 module is now available for Red Hat EnterpriseLinux 8, Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions,and Red Hat Enterprise Linux 8.1 Extended Update Support.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.

Topics%20covered

Topics Covered

security advisory Red Hat important squid cache poisoning HTTP request smuggling HTTP request splitting

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream E4S (v. 8.0) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

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