csirt@kutim:~/threat-intel/cve/CVE-2023-20070

Katalog CVE

CVSS 4.0 · Medium EPSS 0,54%

Kerentanan Improper Clearing of Heap Memory Before Release ('Heap Inspection') pada cisco secure firewall threat defense. Skor CVSS 3.1 4.0 (Medium) menurut NVD.

Deskripsi (NVD)

A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability is due to a logic error in how memory allocations are handled during a TLS 1.3 session. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted TLS 1.3 message sequence through an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in a denial of service (DoS) condition. While the Snort detection engine reloads, packets going through the FTD device that are sent to the Snort detection engine will be dropped. The Snort detection engine will restart automatically. No manual intervention is required.

Rincian

Terbit di NVD
1 November 2023
Terakhir diubah
11 Agustus 2026
Status NVD
Modified
CVSS 3.1
4.0 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-244: Improper Clearing of Heap Memory Before Release ('Heap Inspection')
EPSS (30 hari)
0,54% peluang dieksploitasi; lebih tinggi dari 44,0% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
cisco secure firewall threat defense Versi 7.2.0
cisco secure firewall threat defense Versi 7.2.0.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.