QID 239815

Date Published: 2021-11-11

QID 239815: Red Hat Update for squid:4 security (RHSA-2021:4292)

squid is a high-performance proxy caching server for web clients, supporting ftp, gopher, and http data objects.

Security Fix(es):
  • squid: denial of service in urn processing (cve-2021-28651)
  • squid: denial of service issue in cache manager (cve-2021-28652)
  • squid: denial of service in http response processing (cve-2021-28662)
  • squid: improper input validation in http range header (cve-2021-31806)
  • squid: incorrect memory management in http range header (cve-2021-31807)
  • squid: integer overflow in http range header (cve-2021-31808)
  • squid: denial of service in http response processing (cve-2021-33620)

Affected Products:

  • Red Hat enterprise linux for x86_64 8 x86_64
  • Red Hat enterprise linux for ibm z systems 8 s390x
  • Red Hat enterprise linux for power, little endian 8 ppc64le
  • Red Hat enterprise linux for arm 64 8 aarch64



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Upgrade to the latest packages which contain a patch.

    Refer to Refer to :
    Applying Package Updates to RHEL system     for details.

    Refer to Red Hat security advisory RHSA-2021:4292 Update to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239815

    CVE-2021-28651 | CVE-2021-28652 | CVE-2021-28662 | CVE-2021-31806 | CVE-2021-31807 | CVE-2021-31808 | CVE-2021-33620 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:4292 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:4292
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