QID 239860

Date Published: 2021-11-11

QID 239860: Red Hat Update for firefox (RHSA-2021:4607)

mozilla firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):
  • mozilla: use-after-free in http2 session object
  • mozilla: memory safety bugs fixed in firefox 94 and firefox esr 91.3
  • mozilla: iframe sandbox rules did not apply to xslt stylesheets (cve-2021-38503)
  • mozilla: use-after-free in file picker dialog (cve-2021-38504)
  • mozilla: firefox could be coaxed into going into fullscreen mode without notification or warning (cve-2021-38506)
  • mozilla: opportunistic encryption in http2 could be used to bypass the same-origin-policy on services hosted on other ports (cve-2021-38507)
  • mozilla: permission prompt could be overlaid, resulting in user confusion and potential spoofing (cve-2021-38508)
  • mozilla: javascript alert box could have been spoofed onto an arbitrary domain (cve-2021-38509)

Affected Products:

  • Red Hat enterprise linux for x86_64 - extended update support 8.1 x86_64
  • Red Hat enterprise linux for ibm z systems - extended update support 8.1 s390x
  • Red Hat enterprise linux for power, little endian - extended update support 8.1 ppc64le
  • Red Hat enterprise linux for arm 64 - extended update support 8.1 aarch64
  • Red Hat enterprise linux server (for ibm power le) - update services for sap solutions 8.1 ppc64le
  • Red Hat enterprise linux server - update services for sap solutions 8.1 x86_64



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 Medium - 4.2 severity.
  • CVSS V2 rated as Medium - 5.4 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-2021:4607 Update to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239860

    CVE-2021-38503 | CVE-2021-38504 | CVE-2021-38506 | CVE-2021-38507 | CVE-2021-38508 | CVE-2021-38509 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:4607 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:4607
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].