CVE-2018-18508 : In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed

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 2020-10-22 21:15:12

Updated 2021-02-18 15:20:57

Source Mozilla Corporation

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2018-18508

Siemens » Ruggedcom Rox Mx5000 Firmware
Versions before (<) 2.14.0
cpe:2.3:o:siemens:ruggedcom_rox_mx5000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Ruggedcom Rox Mx5000 » Version: N/A
Siemens » Ruggedcom Rox Rx1400 Firmware
Versions before (<) 2.14.0
cpe:2.3:o:siemens:ruggedcom_rox_rx1400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Ruggedcom Rox Rx1400 » Version: N/A
Siemens » Ruggedcom Rox Rx1500 Firmware
Versions before (<) 2.14.0
cpe:2.3:o:siemens:ruggedcom_rox_rx1500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Ruggedcom Rox Rx1500 » Version: N/A
Siemens » Ruggedcom Rox Rx1501 Firmware
Versions before (<) 2.14.0
cpe:2.3:o:siemens:ruggedcom_rox_rx1501_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Ruggedcom Rox Rx1501 » Version: N/A
Siemens » Ruggedcom Rox Rx1510 Firmware
Versions before (<) 2.14.0
cpe:2.3:o:siemens:ruggedcom_rox_rx1510_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Ruggedcom Rox Rx1510 » Version: N/A
Siemens » Ruggedcom Rox Rx1511 Firmware
Versions before (<) 2.14.0
cpe:2.3:o:siemens:ruggedcom_rox_rx1511_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Ruggedcom Rox Rx1511 » Version: N/A
Siemens » Ruggedcom Rox Rx1512 Firmware
Versions before (<) 2.14.0
cpe:2.3:o:siemens:ruggedcom_rox_rx1512_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Ruggedcom Rox Rx1512 » Version: N/A
Siemens » Ruggedcom Rox Rx5000 Firmware
Versions before (<) 2.14.0
cpe:2.3:o:siemens:ruggedcom_rox_rx5000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Ruggedcom Rox Rx5000 » Version: N/A
Mozilla » Network Security Services
Versions from including (>=) 3.41 and before (<) 3.41.1
cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*
Matching versions
Mozilla » Network Security Services
Versions before (<) 3.36.7
cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2018-18508

EPSS FAQ

0.22%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 60 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-18508

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2018-18508

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-18508

https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04

Siemens RUGGEDCOM ROX II | CISA
Third Party Advisory;US Government Resource

CVEs referencing this url
https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf

Third Party Advisory

CVEs referencing this url
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notes

NSS 3.41.1 release notes - Mozilla | MDN
Release Notes;Vendor Advisory
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_notes

NSS 3.36.7 release notes - Mozilla | MDN
Release Notes;Vendor Advisory

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Vulnerability Details : CVE-2018-18508

Products affected by CVE-2018-18508

Exploit prediction scoring system (EPSS) score for CVE-2018-18508

CVSS scores for CVE-2018-18508

CWE ids for CVE-2018-18508

References for CVE-2018-18508