Security Bulletin: Multiple Linux Kernel vulnerabilities affect IBM Storage Scale System.

Summary

There are multiple vulnerabilities in the Linux Kernel, used by IBM Storage Scale System, which could allow a local authenticated attacker to gain elevated privileges on the system. Fixes for these vulnerabilities are available. CVE-2023-51043, CVE-2024-1086, CVE-2024-0646, CVE-2023-6932, CVE-2024-26582, CVE-2023-6817.

Vulnerability Details

CVEID:CVE-2023-51043
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by a use-after-free due to a race condition between a nonblocking atomic commit and a driver unload in drivers/gpu/drm/drm_atomic.c. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges.
CVSS Base score: 6.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/280864 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2024-1086
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by use-after-free flaw in the nft_verdict_init() function in the Netfilter subsystem. 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/281122 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-2024-0646
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by an out-of-bounds memory write flaw in the Transport Layer Security functionality. A local attacker could exploit this vulnerability to gain elevated privileges or cause the system to crash.
CVSS Base score: 7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/279830 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2023-6932
**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 ipv4: igmp 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/275569 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-2024-26582
**DESCRIPTION:**Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a use-after-free flaw in the tls_decrypt_sg() function. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/283878 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2023-6817
**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 nft_pipapo_walk function in the netfilter: nf_tables 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/275424 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

Remediation/Fixes

IBM recommends that you fix this vulnerability by upgrading affected versions of IBM Storage Scale System 3000, 3200, 3500, 5000 and 6000 to the following code levels or higher:

V6.2.0.0

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Storage+Scale+System&release=6.2.0&platform=All&function=all

V6.1.9.3

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Storage+Scale+System&release=6.1.9&platform=All&function=all

Workarounds and Mitigations

None