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AUSCERT External Security Bulletin Redistribution
ESB-2024.2368
MFSA 2024-19 Security Vulnerabilities fixed in Firefox ESR 115.10
17 April 2024
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AusCERT Security Bulletin Summary
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Product: Firefox ESR
Publisher: Mozilla Foundation
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2024-2609 CVE-2024-3302 CVE-2024-3852
CVE-2024-3854 CVE-2024-3857 CVE-2024-3859
CVE-2024-3861 CVE-2024-3863 CVE-2024-3864
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2024-19/
Comment: CVSS (Max): 5.9* CVE-2024-2609 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
* Not all CVSS available when published
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Mozilla Foundation Security Advisory 2024-19
Security Vulnerabilities fixed in Firefox ESR 115.10
Announced: April 16, 2024
Impact: high
Products: Firefox ESR
Fixed in: Firefox ESR 115.10
# CVE-2024-3852: GetBoundName in the JIT returned the wrong object
Reporter: Logan Stratton
Impact: high
Description
GetBoundName could return the wrong version of an object when JIT optimizations
were applied.
References
o Bug 1883542
# CVE-2024-3854: Out-of-bounds-read after mis-optimized switch statement
Reporter: Lukas Bernhard
Impact: high
Description
In some code patterns the JIT incorrectly optimized switch statements and
generated code with out-of-bounds-reads.
References
o Bug 1884552
# CVE-2024-3857: Incorrect JITting of arguments led to use-after-free during
garbage collection
Reporter: Lukas Bernhard
Impact: high
Description
The JIT created incorrect code for arguments in certain cases. This led to
potential use-after-free crashes during garbage collection.
References
o Bug 1886683
# CVE-2024-2609: Permission prompt input delay could expire when not in focus
Reporter: Shaheen Fazim
Impact: moderate
Description
The permission prompt input delay could expire while the window is not in
focus. This makes it vulnerable to clickjacking by malicious websites.
References
o Bug 1866100
# CVE-2024-3859: Integer-overflow led to out-of-bounds-read in the OpenType
sanitizer
Reporter: Ronald Crane
Impact: moderate
Description
On 32-bit versions there were integer-overflows that led to an
out-of-bounds-read that potentially could be triggered by a malformed OpenType
font.
References
o Bug 1874489
# CVE-2024-3861: Potential use-after-free due to AlignedBuffer self-move
Reporter: Ronald Crane
Impact: moderate
Description
If an AlignedBuffer were assigned to itself, the subsequent self-move could
result in an incorrect reference count and later use-after-free.
References
o Bug 1883158
# CVE-2024-3863: Download Protections were bypassed by .xrm-ms files on Windows
Reporter: Eduardo Braun Prado working with Trend Micro Zero Day Initiative
Impact: moderate
Description
The executable file warning was not presented when downloading .xrm-ms files.
Note: This issue only affected Windows operating systems. Other operating
systems are unaffected.
References
o Bug 1885855
# CVE-2024-3302: Denial of Service using HTTP/2 CONTINUATION frames
Reporter: Bartek Nowotarski via CERT
Impact: low
Description
There was no limit to the number of HTTP/2 CONTINUATION frames that would be
processed. A server could abuse this to create an Out of Memory condition in
the browser.
References
o Bug 1881183
o VU#421644 - HTTP/2 CONTINUATION frames can be utilized for DoS attacks
# CVE-2024-3864: Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and
Thunderbird 115.10
Reporter: Paul Bone
Impact: high
Description
Memory safety bug present in Firefox 124, Firefox ESR 115.9, and Thunderbird
115.9. This bug showed evidence of memory corruption and we presume that with
enough effort this could have been exploited to run arbitrary code.
References
o Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird
115.10
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