An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.

References[email protected]/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/[email protected]/message/6LUNHPW64IGCASZ4JQ2J5KDXNZN53DWW/[email protected]/message/M7IF3LNHOA75O4WZWIHJLIRMA5LJUED3/[email protected]/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/


Source: MITRE

Published: 2019-03-21

Updated: 2020-10-15

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 9.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3.0

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH