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Rewterz Threat Advisory –Multiple Intel Ethernet Linux Driver Security Vulnerabilities
August 11, 2021
Rewterz Threat Advisory – Multiple Node.js Security Vulnerability
August 12, 2021

Rewterz Threat Advisory –Multiple Mozilla Firefox Security Vulnerabilities

August 11, 2021

Severity

High

Analysis Summary

CVE-2021-29990

Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by memory safety bugs within the browser engine. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

CVE-2021-29982

Mozilla Firefox could allow a remote attacker to obtain sensitive information, caused by incorrect JIT optimization and type confusion. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to leak single bit data.

CVE-2021-29985

Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by a use-after-free in MediaCacheStream::NotifyDataReceived method. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service

CVE-2021-29987

Mozilla Firefox could allow a remote attacker to bypass security restrictions, caused by the displaying of permission panels after requesting multiple permissions, and closing the first permission panel. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to trick the user into accepting unwanted permissions on Linux.

CVE-2021-29980

Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by uninitialized memory in a canvas object. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

CVE-2021-29984

Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by incorrect instruction reordering during JIT optimization. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

CVE-2021-29983

Mozilla Firefox for Android could allow a remote attacker to bypass security restrictions, caused by getting stuck in fullscreen mode and the failure to exit after normal interactions. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to bypass security restrictions.

CVE-2021-29988

Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by incorrect style treatment that triggers an out-of-bounds read. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

CVE-2021-29981

Mozilla Firefox is vulnerable to a denial of service, caused by live range splitting in lowering/register allocation that leads to conflicting assignments in the JIT. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to cause the browser to crash.

CVE-2021-29986

Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by a race condition when calling getaddrinfo. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

CVE-2021-29989

Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by memory safety bugs within the browser engine. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

Impact

  • Code Execution
  • Denial of Service
  • Bypass Security
  • Unauthorized Access

Affected Vendors

  • Mozilla

Affected Products

  • Mozilla Firefox 90
  • Mozilla Firefox ESR 78.12
  • Mozilla Firefox for Android 90
  • Mozilla Thunderbird 78.12

Remediation

Refer to Mozilla Foundation Security Advisory 2021-33 for patch, upgrade or suggested workaround information.

https://www.mozilla.org/en-US/security/advisories/

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