CVE-2019-9183

Katalog CVE

CVSS 7.5 · High EPSS 2,3%

Kerentanan Integer Underflow (Wrap or Wraparound) pada contiki-ng, contiki-os contiki. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. A buffer overflow is present due to an integer underflow during 6LoWPAN fragment processing in the face of truncated fragments in os/net/ipv6/sicslowpan.c. This results in accesses of unmapped memory, crashing the application. An attacker can cause a denial-of-service via a crafted 6LoWPAN frame.

Rincian

Terbit di NVD

23 April 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-191: Integer Underflow (Wrap or Wraparound)
CWE-787: Out-of-bounds Write

EPSS (30 hari)

2,3% peluang dieksploitasi; lebih tinggi dari 82,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/contiki-ng/contiki-ng/pull/972 patch · advisory pihak ketiga
• https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4 release notes · advisory pihak ketiga
• https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf deskripsi teknis · advisory pihak ketiga