A squid security update has been released for Red Hat Enterprise Linux 7.
RHSA-2020:2040-01: Important: squid security update
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Red Hat Security Advisory
Synopsis: Important: squid security update
Advisory ID: RHSA-2020:2040-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2040
Issue date: 2020-05-06
CVE Names: CVE-2019-12519 CVE-2019-12525 CVE-2020-11945
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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 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 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: improper check for new member in ESIExpression::Evaluate allows
for stack buffer overflow (CVE-2019-12519)
* squid: improper access restriction upon Digest Authentication nonce
replay could lead to remote code execution (CVE-2020-11945)
* squid: parsing of header Proxy-Authentication leads to memory corruption
(CVE-2019-12525)
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/):
1730535 - CVE-2019-12525 squid: parsing of header Proxy-Authentication leads to memory corruption
1827552 - CVE-2019-12519 squid: improper check for new member in ESIExpression::Evaluate allows for stack buffer overflow
1827563 - CVE-2020-11945 squid: improper access restriction upon Digest Authentication nonce replay could lead to remote code execution
6. Package List:
Red Hat Enterprise Linux Server (v. 7):
Source:
squid-3.5.20-15.el7_8.1.src.rpm
ppc64:
squid-3.5.20-15.el7_8.1.ppc64.rpm
squid-debuginfo-3.5.20-15.el7_8.1.ppc64.rpm
squid-migration-script-3.5.20-15.el7_8.1.ppc64.rpm
ppc64le:
squid-3.5.20-15.el7_8.1.ppc64le.rpm
squid-debuginfo-3.5.20-15.el7_8.1.ppc64le.rpm
squid-migration-script-3.5.20-15.el7_8.1.ppc64le.rpm
s390x:
squid-3.5.20-15.el7_8.1.s390x.rpm
squid-debuginfo-3.5.20-15.el7_8.1.s390x.rpm
squid-migration-script-3.5.20-15.el7_8.1.s390x.rpm
x86_64:
squid-3.5.20-15.el7_8.1.x86_64.rpm
squid-debuginfo-3.5.20-15.el7_8.1.x86_64.rpm
squid-migration-script-3.5.20-15.el7_8.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
squid-debuginfo-3.5.20-15.el7_8.1.ppc64.rpm
squid-sysvinit-3.5.20-15.el7_8.1.ppc64.rpm
ppc64le:
squid-debuginfo-3.5.20-15.el7_8.1.ppc64le.rpm
squid-sysvinit-3.5.20-15.el7_8.1.ppc64le.rpm
s390x:
squid-debuginfo-3.5.20-15.el7_8.1.s390x.rpm
squid-sysvinit-3.5.20-15.el7_8.1.s390x.rpm
x86_64:
squid-debuginfo-3.5.20-15.el7_8.1.x86_64.rpm
squid-sysvinit-3.5.20-15.el7_8.1.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
squid-3.5.20-15.el7_8.1.src.rpm
x86_64:
squid-3.5.20-15.el7_8.1.x86_64.rpm
squid-debuginfo-3.5.20-15.el7_8.1.x86_64.rpm
squid-migration-script-3.5.20-15.el7_8.1.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
squid-debuginfo-3.5.20-15.el7_8.1.x86_64.rpm
squid-sysvinit-3.5.20-15.el7_8.1.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-2019-12519
https://access.redhat.com/security/cve/CVE-2019-12525
https://access.redhat.com/security/cve/CVE-2020-11945
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
