CVE-2021-26713

Katalog CVE

CVSS 6.5 · Medium EPSS 1,9%

Kerentanan Out-of-bounds Write pada digium asterisk, digium certified asterisk. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch.

Rincian

Terbit di NVD

19 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

1,9% peluang dieksploitasi; lebih tinggi dari 78,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://downloads.asterisk.org/pub/security/ advisory vendor
• https://downloads.asterisk.org/pub/security/AST-2021-004.html advisory vendor
• https://issues.asterisk.org/jira/browse/ASTERISK-29205 advisory vendor