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From: Evan Caville <evan.caville@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <f2527829-df57-43ac-8a5e-f971c98ec4f0@canonical.com>
Subject: [USN-7263-1] Firefox vulnerabilities
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==========================================================================
Ubuntu Security Notice USN-7263-1
February 11, 2025
firefox vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in Firefox.
Software Description:
- 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-2025-1011,
CVE-2025-1013, CVE-2025-1014, CVE-2025-1016, CVE-2025-1017, CVE-2025-1018,
CVE-2025-1019, CVE-2025-1020)
Ivan Fratric discovered that Firefox did not properly handle XSLT data,
leading to a use-after-free vulnerability. An attacker could potentially
exploit this issue to cause a denial of service, or execute arbitrary code.
(CVE-2025-1009)
Atte Kettunen discovered that Firefox did not properly manage memory in
the Custom Highlight API, leading to a use-after-free vulnerability. An
attacker could potentially exploit this issue to cause a denial of service,
or execute arbitrary code. (CVE-2025-1010)
Nils Bars discovered that Firefox did not properly manage memory during
concurrent delazification, leading to a use-after-free vulnerability.
An attacker could potentially exploit this issue to cause a denial of
service, or execute arbitrary code. (CVE-2025-1012)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
firefox 135.0+build2-0ubuntu0.20.04.1
After a standard system update you need to restart Firefox to make all the
necessary changes
References:
https://ubuntu.com/security/notices/USN-7263-1
CVE-2025-1009, CVE-2025-1010, CVE-2025-1011, CVE-2025-1012,
CVE-2025-1013, CVE-2025-1014, CVE-2025-1016, CVE-2025-1017,
CVE-2025-1018, CVE-2025-1019, CVE-2025-1020
Package Information:
https://launchpad.net/ubuntu/+source/firefox/135.0+build2-0ubuntu0.20.04.1
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