Security Bulletin
Summary
There are multiple vulnerabilities in the Linux Kernel, used by IBM Storage Scale System, which could allow a denial of service, an attacker to obtain sensitive information or gain elevated privileges on the system . Fixes for these vulnerabilities are available. CVE-2023-3772, CVE-2023-38409, CVE-2023-3567, CVE-2023-0458, CVE-2023-1075, CVE-2023-4622, CVE-2023-1073, CVE-2023-4128, CVE-2023-42753.
Vulnerability Details
CVEID: CVE-2023-3772
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference flaw in the xfrm_update_ae_params() function in the IP framework for transforming packets (XFRM subsystem). By sending a specially crafted request, a local authenticated attacker could exploit this vulnerability to cause the kernel to crash.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/261635 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2023-38409
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a flaw in the set_con2fb_map function in drivers/video/fbdev/core/fbcon.c. By sending a specially crafted request, a local attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 2.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/261031 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2023-3567
DESCRIPTION: Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by a use-after-free flaw in the vcs_read function in drivers/tty/vt/vc_screen.c in vc_screen. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain internal kernel information or cause the system to crash.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/261504 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H)
CVEID: CVE-2023-0458
DESCRIPTION: Linux Kernel could allow a remote authenticated attacker to obtain sensitive information, caused by a speculative pointer dereference in the do_prlimit() function. An attacker could exploit this vulnerability to leak the contents and obtain sensitive information.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253874 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2023-1075
DESCRIPTION: Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by improper checking for list emptiness by the tls_is_tx_ready() function. By sending a specially crafted request to access a type confused entry to the list_head, an attacker could exploit this vulnerability to obtain the last byte of the confused field that overlaps with rec->tx_ready, and use this information to launch further attacks against the affected system.
CVSS Base score: 2.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/248805 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2023-4622
DESCRIPTION: Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by a use-after-free flaw in the af_unix component. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/265425 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2023-1073
DESCRIPTION: Linux Kernel could allow a physical authenticated attacker to gain elevated privileges on the system, caused by a memory corruption flaw in the human interface device (HID) subsystem. By using a specially crafted USB device , an attacker could exploit this vulnerability to gain elevated privileges or cause a denial of service condition.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/251322 for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2023-4128
DESCRIPTION: Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by a use-after-free flaw in net/sched/cls_fw.c in classifiers. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/263234 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2023-42753
DESCRIPTION: Linux Kernel could allow a local authenticated attacker to execute arbitrary code on the system, caused by an integer underflow due to an array indexing issue in the netfilter ipset subsystem. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/266809 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Storage Scale System | 6.1.0.0 - 6.1.2.8 |
| IBM Storage Scale System | 6.1.3.0 - 6.1.9.1 |
Remediation/Fixes
IBM recommends that you fix this vulnerability by upgrading affected versions of IBM Storage Scale System 3000, 3200, 3500, 5000, 6000 to the following code levels or higher:
V6.1.2.9 or later
V6.1.9.2 or later
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
04 Apr 2024: 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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
04 April 2024
UID
ibm17145903