An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Se ha descubierto un error de lectura fuera de límites en libssh2, en versiones anteriores a la 1.8.1, en las funciones _libssh2_packet_require y _libssh2_packet_requirev. Un atacante remoto que comprometa un servidor SSH podría ser capaz de provocar una denegación de servicio o una lectura de datos en la memoria del cliente.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Type: Secondary
Exploitability Score: 3.9
Impact Score: 5.2
AV:N/AC:L/Au:N/C:P/I:N/A:P
| Access Vector | NETWORK |
|---|---|
| Access Complexity | LOW |
| Authentication | NONE |
| Confidentiality Impact | PARTIAL |
| Integrity Impact | NONE |
| Availability Impact | PARTIAL |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-125
|
| [email protected] | Secondary |
en
CWE-125
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary |
en
CWE-125
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| libssh2 | libssh2 | * | <built-in method update of dict object at 0x7fd360697e80> | Application |
| fedoraproject | fedora | 28 | <built-in method update of dict object at 0x7fd36939dbc0> | Operating System |
| fedoraproject | fedora | 29 | <built-in method update of dict object at 0x7fd368d9ae80> | Operating System |
| debian | debian_linux | 8.0 | <built-in method update of dict object at 0x7fd3412579c0> | Operating System |
| debian | debian_linux | 9.0 | <built-in method update of dict object at 0x7fd360695980> | Operating System |
| netapp | ontap_select_deploy_administration_utility | - | <built-in method update of dict object at 0x7fd360694900> | Application |
| opensuse | leap | 15.0 | <built-in method update of dict object at 0x7fd36939c480> | Operating System |
| opensuse | leap | 42.3 | <built-in method update of dict object at 0x7fd36939cf40> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* |