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====================================================================                   
Red Hat Security Advisory

Synopsis:          Important: squid:4 security update
Advisory ID:       RHSA-2021:2025-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2025
Issue date:        2021-05-19
CVE Names:         CVE-2020-25097
====================================================================
1. Summary:

An update for the squid:4 module is now available for Red Hat Enterprise
Linux 8.1 Extended Update Support and Red Hat Enterprise Linux 8.2 Extended
Update Support.

Red Hat Product Security has rated this update as having a security impact
of Important. 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux AppStream EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64

3. Description:

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

Security Fix(es):

* squid: improper input validation may allow a trusted client to perform
HTTP request smuggling (CVE-2020-25097)

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.

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

1939925 - CVE-2020-25097 squid: improper input validation may allow a trusted client to perform HTTP request smuggling

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v. 8.1):

Source:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.src.rpm
squid-4.4-8.module+el8.1.0+10584+c769fd35.3.src.rpm

aarch64:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.aarch64.rpm
libecap-debuginfo-1.0.1-2.module+el8.1.0+4044+36416a77.aarch64.rpm
libecap-debugsource-1.0.1-2.module+el8.1.0+4044+36416a77.aarch64.rpm
libecap-devel-1.0.1-2.module+el8.1.0+4044+36416a77.aarch64.rpm
squid-4.4-8.module+el8.1.0+10584+c769fd35.3.aarch64.rpm
squid-debuginfo-4.4-8.module+el8.1.0+10584+c769fd35.3.aarch64.rpm
squid-debugsource-4.4-8.module+el8.1.0+10584+c769fd35.3.aarch64.rpm

ppc64le:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.ppc64le.rpm
libecap-debuginfo-1.0.1-2.module+el8.1.0+4044+36416a77.ppc64le.rpm
libecap-debugsource-1.0.1-2.module+el8.1.0+4044+36416a77.ppc64le.rpm
libecap-devel-1.0.1-2.module+el8.1.0+4044+36416a77.ppc64le.rpm
squid-4.4-8.module+el8.1.0+10584+c769fd35.3.ppc64le.rpm
squid-debuginfo-4.4-8.module+el8.1.0+10584+c769fd35.3.ppc64le.rpm
squid-debugsource-4.4-8.module+el8.1.0+10584+c769fd35.3.ppc64le.rpm

s390x:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.s390x.rpm
libecap-debuginfo-1.0.1-2.module+el8.1.0+4044+36416a77.s390x.rpm
libecap-debugsource-1.0.1-2.module+el8.1.0+4044+36416a77.s390x.rpm
libecap-devel-1.0.1-2.module+el8.1.0+4044+36416a77.s390x.rpm
squid-4.4-8.module+el8.1.0+10584+c769fd35.3.s390x.rpm
squid-debuginfo-4.4-8.module+el8.1.0+10584+c769fd35.3.s390x.rpm
squid-debugsource-4.4-8.module+el8.1.0+10584+c769fd35.3.s390x.rpm

x86_64:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.x86_64.rpm
libecap-debuginfo-1.0.1-2.module+el8.1.0+4044+36416a77.x86_64.rpm
libecap-debugsource-1.0.1-2.module+el8.1.0+4044+36416a77.x86_64.rpm
libecap-devel-1.0.1-2.module+el8.1.0+4044+36416a77.x86_64.rpm
squid-4.4-8.module+el8.1.0+10584+c769fd35.3.x86_64.rpm
squid-debuginfo-4.4-8.module+el8.1.0+10584+c769fd35.3.x86_64.rpm
squid-debugsource-4.4-8.module+el8.1.0+10584+c769fd35.3.x86_64.rpm

Red Hat Enterprise Linux AppStream EUS (v. 8.2):

Source:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.src.rpm
squid-4.4-8.module+el8.2.0+10583+6e4ac934.3.src.rpm

aarch64:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.aarch64.rpm
libecap-debuginfo-1.0.1-2.module+el8.1.0+4044+36416a77.aarch64.rpm
libecap-debugsource-1.0.1-2.module+el8.1.0+4044+36416a77.aarch64.rpm
libecap-devel-1.0.1-2.module+el8.1.0+4044+36416a77.aarch64.rpm
squid-4.4-8.module+el8.2.0+10583+6e4ac934.3.aarch64.rpm
squid-debuginfo-4.4-8.module+el8.2.0+10583+6e4ac934.3.aarch64.rpm
squid-debugsource-4.4-8.module+el8.2.0+10583+6e4ac934.3.aarch64.rpm

ppc64le:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.ppc64le.rpm
libecap-debuginfo-1.0.1-2.module+el8.1.0+4044+36416a77.ppc64le.rpm
libecap-debugsource-1.0.1-2.module+el8.1.0+4044+36416a77.ppc64le.rpm
libecap-devel-1.0.1-2.module+el8.1.0+4044+36416a77.ppc64le.rpm
squid-4.4-8.module+el8.2.0+10583+6e4ac934.3.ppc64le.rpm
squid-debuginfo-4.4-8.module+el8.2.0+10583+6e4ac934.3.ppc64le.rpm
squid-debugsource-4.4-8.module+el8.2.0+10583+6e4ac934.3.ppc64le.rpm

s390x:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.s390x.rpm
libecap-debuginfo-1.0.1-2.module+el8.1.0+4044+36416a77.s390x.rpm
libecap-debugsource-1.0.1-2.module+el8.1.0+4044+36416a77.s390x.rpm
libecap-devel-1.0.1-2.module+el8.1.0+4044+36416a77.s390x.rpm
squid-4.4-8.module+el8.2.0+10583+6e4ac934.3.s390x.rpm
squid-debuginfo-4.4-8.module+el8.2.0+10583+6e4ac934.3.s390x.rpm
squid-debugsource-4.4-8.module+el8.2.0+10583+6e4ac934.3.s390x.rpm

x86_64:
libecap-1.0.1-2.module+el8.1.0+4044+36416a77.x86_64.rpm
libecap-debuginfo-1.0.1-2.module+el8.1.0+4044+36416a77.x86_64.rpm
libecap-debugsource-1.0.1-2.module+el8.1.0+4044+36416a77.x86_64.rpm
libecap-devel-1.0.1-2.module+el8.1.0+4044+36416a77.x86_64.rpm
squid-4.4-8.module+el8.2.0+10583+6e4ac934.3.x86_64.rpm
squid-debuginfo-4.4-8.module+el8.2.0+10583+6e4ac934.3.x86_64.rpm
squid-debugsource-4.4-8.module+el8.2.0+10583+6e4ac934.3.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/

7. References:

https://access.redhat.com/security/cve/CVE-2020-25097
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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