Headline
Ubuntu Security Notice USN-6747-2
Ubuntu Security Notice 6747-2 - USN-6747-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. 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. Bartek Nowotarski discovered that Firefox did not properly limit HTTP/2 CONTINUATION frames. An attacker could potentially exploit this issue to cause a denial of service. Gary Kwong discovered that Firefox did not properly manage memory when running garbage collection during realm initialization. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. Lukas Bernhard discovered that Firefox did not properly manage memory during JIT optimizations, leading to an out-of-bounds read vulnerability. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. Nan Wang discovered that Firefox did not properly manage memory during WASM garbage collection. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. Various other issues were also addressed.
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Ubuntu Security Notice USN-6747-2
May 02, 2024
firefox regressions
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary:
USN-6747-1 caused some minor regressions in Firefox.
Software Description:
- firefox: Mozilla Open Source web browser
Details:
USN-6747-1 fixed vulnerabilities in Firefox. The update introduced
several minor regressions. This update fixes the problem.
Original advisory 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-2024-3852,
CVE-2024-3864, CVE-2024-3865)
Bartek Nowotarski discovered that Firefox did not properly limit HTTP/2
CONTINUATION frames. An attacker could potentially exploit this issue to
cause a denial of service. (CVE-2024-3302)
Gary Kwong discovered that Firefox did not properly manage memory when
running garbage collection during realm initialization. An attacker could
potentially exploit this issue to cause a denial of service, or execute
arbitrary code. (CVE-2024-3853)
Lukas Bernhard discovered that Firefox did not properly manage memory
during JIT optimisations, leading to an out-of-bounds read vulnerability.
An attacker could possibly use this issue to cause a denial of service or
expose sensitive information. (CVE-2024-3854, CVE-2024-3855)
Nan Wang discovered that Firefox did not properly manage memory during
WASM garbage collection. An attacker could potentially exploit this issue
to cause a denial of service, or execute arbitrary code. (CVE-2024-3856)
Lukas Bernhard discovered that Firefox did not properly manage memory
when handling JIT created code during garbage collection. An attacker
could potentially exploit this issue to cause a denial of service, or
execute arbitrary code. (CVE-2024-3857)
Lukas Bernhard discovered that Firefox did not properly manage memory when
tracing in JIT. An attacker could potentially exploit this issue to cause
a denial of service. (CVE-2024-3858)
Ronald Crane discovered that Firefox did not properly manage memory in the
OpenType sanitizer on 32-bit devices, leading to an out-of-bounds read
vulnerability. An attacker could possibly use this issue to cause a denial
of service or expose sensitive information. (CVE-2024-3859)
Garry Kwong discovered that Firefox did not properly manage memory when
tracing empty shape lists in JIT. An attacker could potentially exploit
this issue to cause a denial of service. (CVE-2024-3860)
Ronald Crane discovered that Firefox did not properly manage memory when
handling an AlignedBuffer. An attacker could potentially exploit this
issue to cause denial of service, or execute arbitrary code.
(CVE-2024-3861)
Ronald Crane discovered that Firefox did not properly manage memory when
handling code in MarkStack. An attacker could possibly use this issue to
cause a denial of service or execute arbitrary code. (CVE-2024-3862)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
firefox 125.0.3+build1-0ubuntu0.20.04.1
After a standard system update you need to restart Firefox to make all the
necessary changes.
References:
https://ubuntu.com/security/notices/USN-6747-2
https://ubuntu.com/security/notices/USN-6747-1
https://launchpad.net/bugs/2064553
Package Information:
https://launchpad.net/ubuntu/+source/firefox/125.0.3+build1-0ubuntu0.20.04.1
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