CVE catalog

CVE-2023-37209

UBUNTU-

[CVE catalog]

A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115.

Severity
High · CVSS 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.59% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "firefox",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "115.0+build2-0ubuntu0.20.04.3"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "69.0.3+build1-0ubuntu1",
        "70.0+build2-0ubuntu1",
        "70.0+build2-0ubuntu2",
        "70.0.1+build1-0ubuntu2",
        "71.0+build2-0ubuntu2",
        "71.0+build5-0ubuntu1",
        "72.0.1+build1-0ubuntu1",
        "72.0.2+build1-0ubuntu1",
        "73.0+build1-0ubuntu1",
        "73.0+build2-0ubuntu1",
        "73.0+build3-0ubuntu1",
        "73.0.1+build1-0ubuntu1",
        "74.0+build1-0ubuntu1",
        "74.0+build2-0ubuntu1",
        "74.0+build2-0ubuntu2",
        "74.0+build3-0ubuntu1",
        "75.0+build3-0ubuntu1",
        "76.0+build2-0ubuntu0.20.04.1",
        "76.0.1+build1-0ubuntu0.20.04.1",
        "77.0.1+build1-0ubuntu0.20.04.1",
        "78.0.1+build1-0ubuntu0.20.04.1",
        "78.0.2+build2-0ubuntu0.20.04.1",
        "79.0+build1-0ubuntu0.20.04.1",
        "80.0+build2-0ubuntu0.20.04.1",
        "80.0.1+build1-0ubuntu0.20.04.1",
        "81.0+build2-0ubuntu0.20.04.1",
        "81.0.2+build1-0ubuntu0.20.04.1",
        "82.0+build2-0ubuntu0.20.04.1",
        "82.0.2+build1-0ubuntu0.20.04.1",
        "82.0.3+build1-0ubuntu0.20.04.1",
        "83.0+build2-0ubuntu0.20.04.1",
        "84.0+build3-0ubuntu0.20.04.1",
        "84.0.1+build1-0ubuntu0.20.04.1",
        "84.0.2+build1-0ubuntu0.20.04.1",
        "85.0+build1-0ubuntu0.20.04.1",
        "85.0.1+build1-0ubuntu0.20.04.1",
        "86.0+build3-0ubuntu0.20.04.1",
        "86.0.1+build1-0ubuntu0.20.04.1",
        "87.0+build3-0ubuntu0.20.04.2",
        "88.0+build2-0ubuntu0.20.04.1",
        "88.0.1+build1-0ubuntu0.20.04.2",
        "89.0+build2-0ubuntu0.20.04.2",
        "89.0.1+build1-0ubuntu0.20.04.1",
        "89.0.2+build1-0ubuntu0.20.04.1",
        "90.0+build1-0ubuntu0.20.04.1",
        "90.0.2+build1-0ubuntu0.20.04.1",
        "91.0+build2-0ubuntu0.20.04.1",
        "91.0.1+build1-0ubuntu0.20.04.1",
        "91.0.2+build1-0ubuntu0.20.04.1",
        "92.0+build3-0ubuntu0.20.04.1",
        "93.0+build1-0ubuntu0.20.04.1",
        "94.0+build3-0ubuntu0.20.04.1",
        "95.0+build1-0ubuntu0.20.04.1",
        "95.0.1+build2-0ubuntu0.20.04.1",
        "96.0+build2-0ubuntu0.20.04.1",
        "97.0+build2-0ubuntu0.20.04.1",
        "97.0.2+build1-0ubuntu0.20.04.1",
        "98.0+build3-0ubuntu0.20.04.2",
        "98.0.1+build2-0ubuntu0.20.04.1",
        "98.0.2+build1-0ubuntu0.20.04.1",
        "99.0+build2-0ubuntu0.20.04.2",
        "100.0+build2-0ubuntu0.20.04.1",
        "100.0.2+build1-0ubuntu0.20.04.1",
        "101.0.1+build1-0ubuntu0.20.04.1",
        "102.0+build2-0ubuntu0.20.04.1",
        "103.0+build1-0ubuntu0.20.04.1",
        "104.0+build3-0ubuntu0.20.04.1",
        "105.0+build2-0ubuntu0.20.04.1",
        "106.0.2+build1-0ubuntu0.20.04.1",
        "106.0.5+build1-0ubuntu0.20.04.1",
        "107.0+build2-0ubuntu0.20.04.1",
        "108.0+build2-0ubuntu0.20.04.1",
        "108.0.1+build1-0ubuntu0.20.04.1",
        "108.0.2+build1-0ubuntu0.20.04.1",
        "109.0+build2-0ubuntu0.20.04.1",
        "109.0.1+build1-0ubuntu0.20.04.2",
        "110.0+build3-0ubuntu0.20.04.1",
        "110.0.1+build2-0ubuntu0.20.04.1",
        "111.0+build2-0ubuntu0.20.04.1",
        "111.0.1+build2-0ubuntu0.20.04.1",
        "112.0+build2-0ubuntu0.20.04.1",
        "112.0.1+build1-0ubuntu0.20.04.1",
        "112.0.2+build1-0ubuntu0.20.04.1",
        "113.0+build2-0ubuntu0.20.04.1",
        "113.0.1+build1-0ubuntu0.20.04.1",
        "113.0.2+build1-0ubuntu0.20.04.1",
        "114.0+build3-0ubuntu0.20.04.1",
        "114.0.1+build1-0ubuntu0.20.04.1",
        "114.0.2+build1-0ubuntu0.20.04.1"
      ],
      "ecosystem": "deb",
      "fixed_version": "115.0+build2-0ubuntu0.20.04.3",
      "provider_record_id": "UBUNTU-CVE-2023-37209"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]