CVE-2021-21281

Katalog CVE

CVSS 9.8 · Critical EPSS 0,92%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada contiki-ng. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Contiki-NG is an open-source, cross-platform operating system for internet of things devices. A buffer overflow vulnerability exists in Contiki-NG versions prior to 4.6. After establishing a TCP socket using the tcp-socket library, it is possible for the remote end to send a packet with a data offset that is unvalidated. The problem has been patched in Contiki-NG 4.6. Users can apply the patch for this vulnerability out-of-band as a workaround.

Rincian

Terbit di NVD

18 Juni 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

0,92% peluang dieksploitasi; lebih tinggi dari 59,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/contiki-ng/contiki-ng/pull/1366 patch · advisory pihak ketiga
• https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-mc42-fqfr-h9fp patch · advisory pihak ketiga