IBM Elastic Storage System update for Linux kernel



Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-32233
CVE-2023-2124
CVE-2023-1637
CWE-ID CWE-416
CWE-125
CWE-1342
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		IBM Elastic Storage System
Server applications / Other server solutions

Vendor IBM Corporation

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU75807

Risk: Low

CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-32233

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in Netfilter nf_tables when processing batch requests. A local user can trigger a use-after-free error and execute arbitrary code with root privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Elastic Storage System: before 6.1.8.3

CPE2.3
External links

http://www.ibm.com/support/pages/node/7087530


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Out-of-bounds read

EUVDB-ID: #VU75323

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-2124

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack..

The vulnerability exists due to a boundary condition within the XFS subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and crash the kernel.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Elastic Storage System: before 6.1.8.3

CPE2.3
External links

http://www.ibm.com/support/pages/node/7087530


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Information exposure through microarchitectural state after transient execution

EUVDB-ID: #VU74771

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1637

CWE-ID: CWE-1342 - Information Exposure through Microarchitectural State after Transient Execution

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due speculative execution behavior in the Linux kernel X86 CPU Power management options functionality. A local user can gain access to sensitive information.


Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Elastic Storage System: before 6.1.8.3

CPE2.3
External links

http://www.ibm.com/support/pages/node/7087530


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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