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Red Hat Security Advisory

Synopsis: Moderate: squid security and bug fix update
Advisory ID: RHSA-2020:1068-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1068
Issue date: 2020-03-31
CVE Names: CVE-2018-1000024 CVE-2018-1000027 CVE-2019-13345
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1. Summary:

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.

2. 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

3. Description:

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.

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/):

1536939 – CVE-2018-1000024 squid: Incorrect pointer handling when processing ESI Responses can lead to denial of service
1536942 – CVE-2018-1000027 squid: Incorrect pointer handling in HTTP processing and certificate download can lead to denial of service
1680022 – squid can’t display download/upload packet size for HTTPS sites
1717430 – Excessive memory usage when running out of descriptors
1727744 – CVE-2019-13345 squid: XSS via user_name or auth parameter in cachemgr.cgi

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
squid-3.5.20-15.el7.src.rpm

ppc64:
squid-3.5.20-15.el7.ppc64.rpm
squid-debuginfo-3.5.20-15.el7.ppc64.rpm
squid-migration-script-3.5.20-15.el7.ppc64.rpm

ppc64le:
squid-3.5.20-15.el7.ppc64le.rpm
squid-debuginfo-3.5.20-15.el7.ppc64le.rpm
squid-migration-script-3.5.20-15.el7.ppc64le.rpm

s390x:
squid-3.5.20-15.el7.s390x.rpm
squid-debuginfo-3.5.20-15.el7.s390x.rpm
squid-migration-script-3.5.20-15.el7.s390x.rpm

x86_64:
squid-3.5.20-15.el7.x86_64.rpm
squid-debuginfo-3.5.20-15.el7.x86_64.rpm
squid-migration-script-3.5.20-15.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
squid-debuginfo-3.5.20-15.el7.ppc64.rpm
squid-sysvinit-3.5.20-15.el7.ppc64.rpm

ppc64le:
squid-debuginfo-3.5.20-15.el7.ppc64le.rpm
squid-sysvinit-3.5.20-15.el7.ppc64le.rpm

s390x:
squid-debuginfo-3.5.20-15.el7.s390x.rpm
squid-sysvinit-3.5.20-15.el7.s390x.rpm

x86_64:
squid-debuginfo-3.5.20-15.el7.x86_64.rpm
squid-sysvinit-3.5.20-15.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
squid-3.5.20-15.el7.src.rpm

x86_64:
squid-3.5.20-15.el7.x86_64.rpm
squid-debuginfo-3.5.20-15.el7.x86_64.rpm
squid-migration-script-3.5.20-15.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
squid-debuginfo-3.5.20-15.el7.x86_64.rpm
squid-sysvinit-3.5.20-15.el7.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-2018-1000024
https://access.redhat.com/security/cve/CVE-2018-1000027
https://access.redhat.com/security/cve/CVE-2019-13345
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.8_release_notes/index

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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