CVE-2021-43538

Katalog CVE

CVSS 4.3 · Medium EPSS 1,2%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada mozilla firefox, mozilla firefox esr +2 lainnya. Skor CVSS 3.1 4.3 (Medium) menurut NVD.

Deskripsi (NVD)

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Rincian

Terbit di NVD

8 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

4.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

EPSS (30 hari)

1,2% peluang dieksploitasi; lebih tinggi dari 68,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.mozilla.org/show_bug.cgi?id=1739091 issue tracking · permissions required · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-52/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-53/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-54/ advisory vendor
• https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202202-03 advisory pihak ketiga
• https://security.gentoo.org/glsa/202208-14 advisory pihak ketiga
• https://www.debian.org/security/2021/dsa-5026 advisory pihak ketiga
• https://www.debian.org/security/2022/dsa-5034 advisory pihak ketiga