Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2020-15795 CVE-2020-27009 |
CWE-ID | CWE-787 CWE-823 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Nucleus RTOS Server applications / Other server solutions Nucleus Source Code Server applications / Other server solutions VSTAR Server applications / Other server solutions Nucleus NET Server applications / Other server solutions |
Vendor | Siemens |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU52208
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-15795
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 DNS domain name label parsing functionality. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNucleus RTOS: All versions
Nucleus Source Code: All versions
VSTAR: All versions
Nucleus NET: before 5.2
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-103-04
http://cert-portal.siemens.com/productcert/pdf/ssa-185699.pdf
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.
EUVDB-ID: #VU52209
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-27009
CWE-ID:
CWE-823 - Use of Out-of-range Pointer Offset
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the DNS domain name record decompression functionality does not properly validate the pointer offset values. A remote atttacker can execute arbitrary code on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNucleus RTOS: All versions
Nucleus Source Code: All versions
VSTAR: All versions
Nucleus NET: before 5.2
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-103-04
http://cert-portal.siemens.com/productcert/pdf/ssa-185699.pdf
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.