CVE-2023-37457

Katalog CVE

CVSS 8.2 · High EPSS 1,1%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada digium asterisk, sangoma certified asterisk. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk versions 18.20.0 and prior, 20.5.0 and prior, and 21.0.0; as well as ceritifed-asterisk 18.9-cert5 and prior, the 'update' functionality of the PJSIP_HEADER dialplan function can exceed the available buffer space for storing the new value of a header. By doing so this can overwrite memory or cause a crash. This is not externally exploitable, unless dialplan is explicitly written to update a header based on data from an outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa.

Rincian

Terbit di NVD

14 Desember 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

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

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 65,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/asterisk/asterisk/security/advisories/GHSA-98rc-4j27-74hh advisory vendor
• https://github.com/asterisk/asterisk/commit/a1ca0268254374b515fa5992f01340f7717113fa patch
• https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html