Mozilla: >> Firefox >> 115.20.0 Security Vulnerabilities
In some code patterns the JIT incorrectly optimized switch statements and generated code with out-of-bounds-reads. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
CVSS Score
8.8
EPSS Score
0.009
Published
2024-04-16
In certain cases the JIT incorrectly optimized MSubstr operations, which led to out-of-bounds reads. This vulnerability affects Firefox < 125.
CVSS Score
6.5
EPSS Score
0.002
Published
2024-04-16
A use-after-free could occur during WASM execution if garbage collection ran during the creation of an array. This vulnerability affects Firefox < 125.
CVSS Score
8.8
EPSS Score
0.007
Published
2024-04-16
The JIT created incorrect code for arguments in certain cases. This led to potential use-after-free crashes during garbage collection. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
CVSS Score
7.8
EPSS Score
0.001
Published
2024-04-16
It was possible to mutate a JavaScript object so that the JIT could crash while tracing it. This vulnerability affects Firefox < 125.
CVSS Score
7.5
EPSS Score
0.002
Published
2024-04-16
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. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
CVSS Score
5.9
EPSS Score
0.016
Published
2024-04-16
An out-of-memory condition during object initialization could result in an empty shape list. If the JIT subsequently traced the object it would crash. This vulnerability affects Firefox < 125.
CVSS Score
6.2
EPSS Score
0.0
Published
2024-04-16
If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
CVSS Score
4.0
EPSS Score
0.001
Published
2024-04-16
The MarkStack assignment operator, part of the JavaScript engine, could access uninitialized memory if it were used in a self-assignment. This vulnerability affects Firefox < 125.
CVSS Score
5.3
EPSS Score
0.001
Published
2024-04-16
Memory safety bugs present in Firefox 124. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 125.
CVSS Score
8.1
EPSS Score
0.003
Published
2024-04-16