CVE-2023-4050

Description

In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 8.68% Top 10%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox ESR
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1843038 issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2023-29/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-30/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-31/ vendor advisory
https://www.debian.org/security/2023/dsa-5464 third party advisory
https://www.debian.org/security/2023/dsa-5469 third party advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html

Frequently Asked Questions

What is the severity of CVE-2023-4050?
CVE-2023-4050 has been scored as a high severity vulnerability.
How to fix CVE-2023-4050?
To fix CVE-2023-4050, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4050 being actively exploited in the wild?
It is possible that CVE-2023-4050 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~9% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4050?
CVE-2023-4050 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Firefox ESR.
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