Multiple vulnerabilities in IBM i
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2017-5753 CVE-2017-5715 CVE-2017-5754 CVE-2018-3639 |
| CWE-ID | CWE-200 CWE-362 |
| Exploitation vector | Local |
| Public exploit |
Vulnerability #1 is being exploited in the wild. Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #3 is available. |
| Vulnerable software |
IBM i Operating systems & Components / Operating system |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU9884
Risk: Low
CVSSv4.0: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Clear]
CVE-ID: CVE-2017-5753
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists in Intel CPU hardware due to improper implementation of the speculative execution of instructions. A local attacker can perform a bounds check bypass, execute arbitrary code, conduct a side-channel attack and read sensitive memory information.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM i: 7.1 - 7.3
CPE2.3- cpe:2.3:o:ibm_corporation:ibm_i:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_i:7.2:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_i:7.3:*:*:*:*:*:*:*
https://www.ibm.com/support/pages/node/687871
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.
2) Information disclosure
EUVDB-ID: #VU9883
Risk: Low
CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2017-5715
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists in Intel CPU hardware due to improper implementation of the speculative execution of instructions. A local attacker can utilize branch target injection, execute arbitrary code, perform a side-channel attack and read sensitive memory information.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM i: 7.1 - 7.3
CPE2.3- cpe:2.3:o:ibm_corporation:ibm_i:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_i:7.2:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_i:7.3:*:*:*:*:*:*:*
https://www.ibm.com/support/pages/node/687871
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.
3) Information disclosure
EUVDB-ID: #VU9882
Risk: Low
CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2017-5754
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists in Intel CPU hardware due to side-channel attacks, which are also referred to as Meltdown attacks. A local attacker can execute arbitrary code, perform a side-channel analysis of the data cache and gain access to sensitive information including memory from the CPU cache.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM i: 7.1 - 7.3
CPE2.3- cpe:2.3:o:ibm_corporation:ibm_i:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_i:7.2:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_i:7.3:*:*:*:*:*:*:*
https://www.ibm.com/support/pages/node/687871
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.
4) Speculative Store Bypass
EUVDB-ID: #VU12911
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-3639
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists due to race conditions in CPU cache processing. A local attacker can conduct a side-channel attack to exploit a flaw in the speculative execution of Load and Store instructions to read privileged memory.
Note: the vulnerability is referred to as "Spectre variant 4".
Install update from vendor's website.
Vulnerable software versionsIBM i: 7.1 - 7.3
CPE2.3- cpe:2.3:o:ibm_corporation:ibm_i:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_i:7.2:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_i:7.3:*:*:*:*:*:*:*
https://www.ibm.com/support/pages/node/687871
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.
