What is CVE-2023-5170?

CVE-2023-5170 is a high-severity vulnerability in Mozilla Firefox, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.4/10. Published 2023-09-27.

How severe is CVE-2023-5170?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Mozilla Firefox

CVE-2023-5170

In canvas rendering, a compromised content process could have caused a surface to change unexpectedly, leading to a memory leak of a privileged process. This memory leak could be used to effect a sandbox escape if the correct data was leaked. This vulnerability affects Firefox < 118.

EPSS: 0.006 (44.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

security@mozilla.org (Permissions Required, Issue Tracking)
security@mozilla.org (Vendor Advisory)
security@mozilla.org

Frequently asked questions

What is CVE-2023-5170?: CVE-2023-5170 is a high-severity vulnerability in Mozilla Firefox, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.4/10. Published 2023-09-27.
How severe is CVE-2023-5170?: High severity. CVSS v3 base score is 7.4 out of 10.