USN-7056-1: Firefox vulnerabilities

7 October 2024

Several security issues were fixed in Firefox.

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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-2024-9392,
CVE-2024-9396, CVE-2024-9397, CVE-2024-9398, CVE-2024-9399, CVE-2024-9400,
CVE-2024-9401, CVE-2024-9402, CVE-2024-9403)

Masato Kinugawa discovered that Firefox did not properly validate
javascript under the "resource://pdf.js" origin. An attacker could
potentially exploit this issue to execute arbitrary javascript code and
access cross-origin PDF content. (CVE-2024-9393)

Masato Kinugawa discovered that Firefox did not properly validate
javascript under the "resource://devtools" origin. An attacker could
potentially exploit this issue to execute arbitrary javascript code and
access cross-origin JSON content. (CVE-2024-9394)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 20.04

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

References

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