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HistoryJun 04, 2020 - 3:26 p.m.

Security Bulletin: IBM Integrated Management Module II (IMM2) is affected by multiple vulnerabilities in libssh2

2020-06-0415:26:02
www.ibm.com
23

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

Summary

The following vulnerabilities in libssh2 have been addressed by IBM Integrated Management Module II (IMM2).

Vulnerability Details

CVEID:CVE-2019-3857
**DESCRIPTION:**libssh2 could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow. By sending a specially crafted SSH_MSG_CHANNEL_REQUEST packet with an exit signal message, a remote attacker could exploit this vulnerability to trigger an out-of-bounds write and execute arbitrary code on the client system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158341 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:CVE-2019-3856
**DESCRIPTION:**libssh2 could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow in keyboard interactive handling. By sending a specially crafted request, a remote attacker could exploit this vulnerability to trigger an out-of-bounds write and execute arbitrary code on the client system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158340 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:CVE-2019-3855
**DESCRIPTION:**libssh2 could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow in transport read. By sending specially crafted packets, a remote attacker could exploit this vulnerability to trigger an out-of-bounds read and execute arbitrary code on the client system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158339 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:CVE-2019-3859
**DESCRIPTION:**libssh2 is vulnerable to a denial of service, caused by an out-of-bounds read in the _libssh2_packet_require and _libssh2_packet_requirev functions. By sending a specially crafted packet, a remote attacker could exploit this vulnerability to cause a denial of service or read data in the client memory.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158343 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID:CVE-2019-3858
**DESCRIPTION:**libssh2 is vulnerable to a denial of service, caused by an out-of-bounds read. By sending a specially crafted SFTP packet, a remote attacker could exploit this vulnerability to cause a denial of service or read data in the client memory.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158342 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID:CVE-2019-3863
**DESCRIPTION:**libssh2 could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow in user authenticate keyboard interactive. By sending a specially crafted message, a remote attacker could exploit this vulnerability to trigger an out-of-bounds write and execute arbitrary code on the client system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158347 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:CVE-2019-3862
**DESCRIPTION:**libssh2 is vulnerable to a denial of service, caused by an out-of-bounds read when parsing packets with an exit status message and no payload. By sending specially crafted SSH_MSG_CHANNEL_REQUEST packets, a remote attacker could exploit this vulnerability to cause a denial of service or read data in the client memory.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158346 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2019-3861
**DESCRIPTION:**libssh2 is vulnerable to a denial of service, caused by an out-of-bounds read when parsing packets with a padding length value greater than the packet length. By sending a specially crafted SSH packet, a remote attacker could exploit this vulnerability to cause a denial of service or read data in the client memory.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158345 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L)

Affected Products and Versions

Affected Product(s) Version(s)
IBM Integrated Management Module II (IMM2) for System x and Flex 1AOO
IBM Integrated Management Module II (IMM2) for BladeCenter 1AOO

Remediation/Fixes

Firmware fixes are available on Fix Central: <http://www.ibm.com/support/fixcentral/&gt;

Affected Product(s) Version(s)

IBM Integrated Management Module II (IMM2) for System x and Flex

(ibm_fw_imm2_1aoo94b-7.80_anyos_noarch)

| 1AOO94B-7.80

IBM Integrated Management Module II (IMM2) for BladeCenter

(ibm_fw_imm2_1aoo94b-7.80-bc_anyos_noarch)

| 1AOO94B-7.80-bc

Workarounds and Mitigations

None

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

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