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Red Hat: RHSA-2020-1068 Moderate: Squid Denial of Service and XSS Risks

red hat
Calendar Grey March 31, 2020
Dist Redhat Esm H88
Red Hat issues important squid security patch tackling denial of service and XSS vulnerabilities for Enterprise Linux 7.
An update for squid is now available for Red Hat Enterprise Linux 7

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: 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.

Topics%20covered

Topics Covered

security advisory moderate denial of service XSS bug fix Red Hat Enterprise Linux squid

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://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.8_release_notes/index

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:

Read the Full Advisory


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

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 Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate denial of service XSS bug fix Red Hat Enterprise Linux squid

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

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 descriptors1727744 - CVE-2019-13345 squid: XSS via user_name or auth parameter in cachemgr.cgi

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