CVE-2020-17469

Katalog CVE

CVSS 7.5 · High EPSS 3,0%

Kerentanan Access of Uninitialized Pointer pada butok fnet. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in FNET through 4.6.4. The code for IPv6 fragment reassembly tries to access a previous fragment starting from a network incoming fragment that still doesn't have a reference to the previous one (which supposedly resides in the reassembly list). When faced with an incoming fragment that belongs to a non-empty fragment list, IPv6 reassembly must check that there are no empty holes between the fragments: this leads to an uninitialized pointer dereference in _fnet_ip6_reassembly in fnet_ip6.c, and causes Denial-of-Service.

Rincian

Terbit di NVD

11 Desember 2020

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-824: Access of Uninitialized Pointer

EPSS (30 hari)

3,0% peluang dieksploitasi; lebih tinggi dari 87,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 advisory pihak ketiga · pemerintah AS
• https://www.kb.cert.org/vuls/id/815128 advisory pihak ketiga · pemerintah AS
• http://fnet.sourceforge.net/manual/fnet_history.html release notes · advisory pihak ketiga