CVE-2023-4578

Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception

published September 11, 2023

CVSS
—
EPSS
1%
Percentile
49.1
In the wild
Unconfirmed
What it is

When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00622 · 49.1th percentile
Published
2023-09-11T08:01Z
EPSS history
Timeline
  • 11 SEP 08:01Z
    Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception
    cvelistv5