CVE-2021-39921

Katalog CVE

CVSS 7.5 · High EPSS 3,4%

Kerentanan NULL Pointer Dereference pada wireshark, fedoraproject fedora +1 lainnya. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

Rincian

Terbit di NVD

19 November 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

3,4% peluang dieksploitasi; lebih tinggi dari 88,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.wireshark.org/security/wnpa-sec-2021-14.html advisory vendor
• https://gitlab.com/wireshark/wireshark/-/issues/17703 exploit · issue tracking · patch · advisory pihak ketiga
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202210-04 advisory pihak ketiga
• https://www.debian.org/security/2021/dsa-5019 advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TY...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQB...