QID 239193

Date Published: 2021-04-01

QID 239193: Red Hat Update for firefox (RHSA-2021:0990)

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.This update upgrades Firefox to version 78.9.0 ESR.

Security Fix(es): Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read (CVE-2021-23981) Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9 (CVE-2021-23987) Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2021-23982) Mozilla: Malicious extensions could have spoofed popup information (CVE-2021-23984)

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 Critical - 8.8 severity.
  • CVSS V2 rated as High - 6.8 severity.
    • Solution
    Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.

    Refer to Red Hat security advisory RHSA-2021:0990 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239193

    CVE-2021-23981 | CVE-2021-23982 | CVE-2021-23984 | CVE-2021-23987 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:0990 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:0990?language=en
    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].