1. Ubuntu Security Notices
  2. USN-6320-1

USN-6320-1: Firefox vulnerabilities

Publication date

30 August 2023

Overview

Several security issues were fixed in Firefox.

Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2023-4573,
CVE-2023-4574, CVE-2023-4575, CVE-2023-4578, CVE-2023-4581, CVE-2023-4583,
CVE-2023-4584, CVE-2023-4585)

Lukas Bernhard discovered that Firefox did not properly manage memory when
the “UpdateRegExpStatics” attempted to access “initialStringHeap”. An
attacker could potentially exploit this issue to cause a denial of service.
(

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2023-4573,
CVE-2023-4574, CVE-2023-4575, CVE-2023-4578, CVE-2023-4581, CVE-2023-4583,
CVE-2023-4584, CVE-2023-4585)

Lukas Bernhard discovered that Firefox did not properly manage memory when
the “UpdateRegExpStatics” attempted to access “initialStringHeap”. An
attacker could potentially exploit this issue to cause a denial of service.
(CVE-2023-4577)

Malte Jürgens discovered that Firefox did not properly handle search
queries if the search query itself was a well formed URL. An attacker could
potentially exploit this issue to perform spoofing attacks. (CVE-2023-4579)

Harveer Singh discovered that Firefox did not properly handle push
notifications stored on disk in private browsing mode. An attacker could
potentially exploits this issue to access sensitive information.
(CVE-2023-4580)

Update instructions

After a standard system update you need to restart Firefox to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
20.04 focal firefox –  117.0+build2-0ubuntu0.20.04.1

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References

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