Multiple vulnerabilities in IBM MQ Appliance
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2020-12762 CVE-2021-33631 CVE-2023-6931 CVE-2024-1086 |
| CWE-ID | CWE-787 CWE-190 CWE-416 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Vulnerability #4 is being exploited in the wild. |
| Vulnerable software Subscribe |
IBM MQ Appliance Other software / Other software solutions |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Out-of-bounds write
EUVDB-ID: #VU27882
Risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-12762
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the "printbuf_memappend". A remote attacker can create a specially crafted JSON file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM MQ Appliance: before 9.3.5.2
External linkshttp://www.ibm.com/support/pages/node/7157537
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
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) Integer overflow
EUVDB-ID: #VU86575
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-33631
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow when mounting a malicious filesystem. A local user can mount a specially crafted filesystem, trigger an integer overflow and execute arbitrary code.
Install update from vendor's website.
Vulnerable software versionsIBM MQ Appliance: before 9.3.5.2
External linkshttp://www.ibm.com/support/pages/node/7157537
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) Out-of-bounds write
EUVDB-ID: #VU85021
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-6931
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the Linux kernel's Performance Events system component. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Install update from vendor's website.
Vulnerable software versionsIBM MQ Appliance: before 9.3.5.2
External linkshttp://www.ibm.com/support/pages/node/7157537
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.
4) Use-after-free
EUVDB-ID: #VU86577
Risk: High
CVSSv3.1: 8.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2024-1086
CWE-ID:
CWE-416 - Use After Free
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the netfilter nf_tables component in Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code on the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM MQ Appliance: before 9.3.5.2
External linkshttp://www.ibm.com/support/pages/node/7157537
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?
Yes. This vulnerability is being exploited in the wild.
