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CVE-2020-22218

Published: 22 August 2023

An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
libssh2
Launchpad, Ubuntu, Debian
upstream Needs triage

bionic
Released (1.8.0-1ubuntu0.1)
focal
Released (1.8.0-2.1ubuntu0.1)
jammy Not vulnerable
(1.10.0-2)
lunar Not vulnerable
(1.10.0-3)
trusty
Released (1.4.3-2ubuntu0.2+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
xenial
Released (1.5.0-2ubuntu0.1+esm2)
Available with Ubuntu Pro
mantic Not vulnerable
(1.10.0-3)
Patches:
upstream: https://github.com/libssh2/libssh2/commit/0b44e558f311671f6e6d14c559bc1c9bda59b8df

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H