Name: CVE-2020-35776: Buffer Copy without Checking Size of Input
Creator: Rapid7
Published: 2021-02-18T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-35776, CWE-120, CVSS 6.5, EPSS 0.04054

A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses.

CVSS Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade asterisk	Mar 26, 2024	Feb 18, 2021
Debian	—	Upgrade asterisk	Jul 30, 2024	Feb 18, 2021
Freebsd	—	Upgrade asterisk18Upgrade asterisk16Upgrade asterisk13	Dec 10, 2025	Feb 18, 2021
Gentoo Linux	—	Upgrade net-misc/asterisk.	Dec 9, 2024	Feb 18, 2021

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CVSS Details

Covered by Rapid7

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