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    RedHat: RHSA-2020-4082:01 Important: squid security update

    Date
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    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
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Important: squid security update
    Advisory ID:       RHSA-2020:4082-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2020:4082
    Issue date:        2020-09-30
    CVE Names:         CVE-2019-12528 CVE-2020-8449 CVE-2020-8450 
                       CVE-2020-15049 CVE-2020-15810 CVE-2020-15811 
                       CVE-2020-24606 
    =====================================================================
    
    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: HTTP Request Smuggling could result in cache poisoning
    (CVE-2020-15810)
    
    * squid: HTTP Request Splitting could result in cache poisoning
    (CVE-2020-15811)
    
    * squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)
    
    * squid: Improper input validation issues in HTTP Request processing
    (CVE-2020-8449)
    
    * squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)
    
    * squid: Request smuggling and poisoning attack against the HTTP cache
    (CVE-2020-15049)
    
    * squid: Improper input validation could result in a DoS (CVE-2020-24606)
    
    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/):
    
    1798534 - CVE-2019-12528 squid: Information Disclosure issue in FTP Gateway
    1798540 - CVE-2020-8449 squid: Improper input validation issues in HTTP Request processing
    1798552 - CVE-2020-8450 squid: Buffer overflow in reverse-proxy configurations
    1852550 - CVE-2020-15049 squid: Request smuggling and poisoning attack against the HTTP cache
    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
    1871705 - CVE-2020-24606 squid: Improper input validation could result in a DoS
    
    6. Package List:
    
    Red Hat Enterprise Linux Server (v. 7):
    
    Source:
    squid-3.5.20-17.el7_9.4.src.rpm
    
    ppc64:
    squid-3.5.20-17.el7_9.4.ppc64.rpm
    squid-debuginfo-3.5.20-17.el7_9.4.ppc64.rpm
    squid-migration-script-3.5.20-17.el7_9.4.ppc64.rpm
    
    ppc64le:
    squid-3.5.20-17.el7_9.4.ppc64le.rpm
    squid-debuginfo-3.5.20-17.el7_9.4.ppc64le.rpm
    squid-migration-script-3.5.20-17.el7_9.4.ppc64le.rpm
    
    s390x:
    squid-3.5.20-17.el7_9.4.s390x.rpm
    squid-debuginfo-3.5.20-17.el7_9.4.s390x.rpm
    squid-migration-script-3.5.20-17.el7_9.4.s390x.rpm
    
    x86_64:
    squid-3.5.20-17.el7_9.4.x86_64.rpm
    squid-debuginfo-3.5.20-17.el7_9.4.x86_64.rpm
    squid-migration-script-3.5.20-17.el7_9.4.x86_64.rpm
    
    Red Hat Enterprise Linux Server Optional (v. 7):
    
    ppc64:
    squid-debuginfo-3.5.20-17.el7_9.4.ppc64.rpm
    squid-sysvinit-3.5.20-17.el7_9.4.ppc64.rpm
    
    ppc64le:
    squid-debuginfo-3.5.20-17.el7_9.4.ppc64le.rpm
    squid-sysvinit-3.5.20-17.el7_9.4.ppc64le.rpm
    
    s390x:
    squid-debuginfo-3.5.20-17.el7_9.4.s390x.rpm
    squid-sysvinit-3.5.20-17.el7_9.4.s390x.rpm
    
    x86_64:
    squid-debuginfo-3.5.20-17.el7_9.4.x86_64.rpm
    squid-sysvinit-3.5.20-17.el7_9.4.x86_64.rpm
    
    Red Hat Enterprise Linux Workstation (v. 7):
    
    Source:
    squid-3.5.20-17.el7_9.4.src.rpm
    
    x86_64:
    squid-3.5.20-17.el7_9.4.x86_64.rpm
    squid-debuginfo-3.5.20-17.el7_9.4.x86_64.rpm
    squid-migration-script-3.5.20-17.el7_9.4.x86_64.rpm
    
    Red Hat Enterprise Linux Workstation Optional (v. 7):
    
    x86_64:
    squid-debuginfo-3.5.20-17.el7_9.4.x86_64.rpm
    squid-sysvinit-3.5.20-17.el7_9.4.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-2019-12528
    https://access.redhat.com/security/cve/CVE-2020-8449
    https://access.redhat.com/security/cve/CVE-2020-8450
    https://access.redhat.com/security/cve/CVE-2020-15049
    https://access.redhat.com/security/cve/CVE-2020-15810
    https://access.redhat.com/security/cve/CVE-2020-15811
    https://access.redhat.com/security/cve/CVE-2020-24606
    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.
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