Security Bulletin
Summary
There are multiple vulnerabilities in Linux Kernel Version used by IBM QRadar SIEM. IBM QRadar SIEM has addressed the applicable CVEs.
Vulnerability Details
CVEID: CVE-2021-22543
DESCRIPTION: Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by improper handling of VM_IO|VM_PFNMAP vmas in KVM. By sending a specially-crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges to start and control a VM to read/write random pages of memory.
CVSS Base score: 7.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202561 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
CVEID: CVE-2021-3653
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by improper input validation of the "int_ctl" VMCB field. By sending a specially-crafted request, a local authenticated attacker could exploit this vulnerability to cause the system to crash or obtain sensitive information from the physical memory.
CVSS Base score: 7.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207522 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
CVEID: CVE-2021-3656
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by improper input validation of the "virt_ext" VMCB field. By sending a specially-crafted request, a local authenticated attacker could exploit this vulnerability to cause the system to crash or obtain sensitive information from the physical memory.
CVSS Base score: 7.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207523 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
CVEID: CVE-2021-37576
DESCRIPTION: Linux Kernel for PowerPC could allow a local authenticated attacker to execute arbitrary code on the system, caused by a memory corruption flaw in the handling of the H_RTAS hypercall. 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: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206372 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 QRadar SIEM | 7.5.0 GA |
| IBM QRadar SIEM | 7.4.3 GA - 7.4.3 FP4 |
| IBM QRadar SIEM | 7.3.3 GA - 7.3.3 FP10 |
Remediation/Fixes
IBM recommends customers update their systems promptly.
| Product | VRMF | Remediation/First Fix |
| IBM QRadar SIEM | 7.5.0 GA | QRadar / QRM / QVM / QRIF / QNI 7.5.0 UP1 |
| IBM QRadar SIEM | 7.4.3 GA - 7.4.3 FP4 | QRadar / QRM / QVM / QRIF / QNI 7.4.3 FP5 |
| IBM QRadar SIEM | 7.3.3 GA - 7.3.3 FP10 | QRadar / QRM / QVM / QRIF / QNI 7.3.3 FP11 |
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
12 Apr 2022: 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
28 April 2022
UID
ibm16576215