CVE-2018-18508
MEDIUMCVSS 6.5/10EPSS 1.96%
Last modified
CVE-2018-18508 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.. EPSS estimates a 1.96% chance of exploitation in the next 30 days.
Description
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Network Security Services | < 3.36.7 |
| Mozilla | Network Security Services | >= 3.41, < 3.41.1 |
| Siemens | Ruggedcom Rox Mx5000 Firmware | < 2.14.0 |
| Siemens | Ruggedcom Rox Rx1400 Firmware | < 2.14.0 |
| Siemens | Ruggedcom Rox Rx1500 Firmware | < 2.14.0 |
| Siemens | Ruggedcom Rox Rx1501 Firmware | < 2.14.0 |
| Siemens | Ruggedcom Rox Rx1510 Firmware | < 2.14.0 |
| Siemens | Ruggedcom Rox Rx1511 Firmware | < 2.14.0 |
| Siemens | Ruggedcom Rox Rx1512 Firmware | < 2.14.0 |
| Siemens | Ruggedcom Rox Rx5000 Firmware | < 2.14.0 |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdfThird Party Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_notesRelease Notes, Vendor Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notesRelease Notes, Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04Third Party Advisory, US Government Resource
- https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdfThird Party Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_notesRelease Notes, Vendor Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notesRelease Notes, Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-18508?
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
How severe is CVE-2018-18508?
CVE-2018-18508 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.96% probability of exploitation in the next 30 days.
How do I fix CVE-2018-18508?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2018-18508?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST