NULL pointer dereference in Mozilla Network Security Services
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: +0.000
Affected products
- Mozilla Network Security Services
- Mozilla Nss — versions unspecified
- Siemens Ruggedcom Rox Mx5000
- Siemens Ruggedcom Rox Mx5000 Firmware
- Siemens Ruggedcom Rox Rx1400
- Siemens Ruggedcom Rox Rx1400 Firmware
- Siemens Ruggedcom Rox Rx1500
- Siemens Ruggedcom Rox Rx1500 Firmware
- Siemens Ruggedcom Rox Rx1501
- Siemens Ruggedcom Rox Rx1501 Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_notes (Release Notes, Vendor Advisory)
- developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notes (Release Notes, Vendor Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf (Third Party Advisory)
- us-cert.cisa.gov/ics/advisories/icsa-21-040-04 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-18508?
- CVE-2018-18508 is a medium-severity vulnerability in Mozilla Network Security Services, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2020-10-22.
- How severe is CVE-2018-18508?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-18508 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.