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

Security Bulletin


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 Flex1AOO
IBM Integrated Management Module II (IMM2) for BladeCenter1AOO

Remediation/Fixes

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

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

Get Notified about Future Security Bulletins

References

Off

Change History

04 Jun 2020: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location

Worldwide

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Document Information

Modified date:
04 June 2020

UID

ibm16220270