CVE-2021-26717

Katalog CVE

CVSS 7.5 · High EPSS 2,2%

Kerentanan pada digium asterisk, digium certified asterisk. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in Sangoma Asterisk 16.x before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6. When re-negotiating for T.38, if the initial remote response was delayed just enough, Asterisk would send both audio and T.38 in the SDP. If this happened, and the remote responded with a declined T.38 stream, then Asterisk would crash.

Rincian

Terbit di NVD

18 Februari 2021

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

EPSS (30 hari)

2,2% peluang dieksploitasi; lebih tinggi dari 82,0% 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-2021-002.html advisory vendor
• https://issues.asterisk.org/jira/browse/ASTERISK-29203 issue tracking · patch · advisory vendor
• http://seclists.org/fulldisclosure/2021/Feb/58 mailing list · patch · advisory pihak ketiga
• http://packetstormsecurity.com/files/161471/Asterisk-Project-Security-Advisory-AST-2021-002.html advisory pihak ketiga