CVE-2020-26974

Source
https://cve.org/CVERecord?id=CVE-2020-26974
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26974.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-26974
Downstream
Related
Published
2021-01-07T14:15:12Z
Modified
2026-03-14T14:46:29.153755Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

References

Affected packages

Git /

Affected ranges

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26974.json"
unresolved_ranges
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "84.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "78.6.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "78.6.0"
            }
        ]
    }
]