CVE-2019-17007: mozilla network_security_services Improper Certificate Validation
CVSS: 7.5v3.1HighModified
AliasesRHEA-2019:3280UBUNTU-CVE-2019-17007USN-4215-1DEBIAN-CVE-2019-17007DLA-2015-1
Published 22-10-2020Last modified 05-08-2024
Vulnerability summary
CVE-2019-17007 is a high (CVSS 7.5) Improper Certificate Validation vulnerability in mozilla network_security_services. EPSS estimates a 1.40% chance of exploitation in the next 30 days, higher than 72% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.40%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 5Timeline
- 22-10-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In Network Security Services before 3.44, a malformed Netscape Certificate Sequence can cause NSS to crash, resulting in a denial of service.
CVSS metrics
5 scores · 4 sources · 3 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
High 7.5Preferred score · OSV · Red hat (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.40%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
0.00 pp
From 1.40% on 18-09-2026
18-09-202618-10-2026
EPSS score1.40%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.mozilla.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Redhat17 products
- nspr< 0:4.21.0-1.el6_10
- nspr-debuginfo< 0:4.21.0-1.el6_10
- nspr-devel< 0:4.21.0-1.el6_10
- nss< 0:3.44.0-7.el6_10
- nss-debuginfo< 0:3.44.0-7.el6_10
Siemens8 products
- ruggedcom_rox_mx5000_firmware< 2.14.0
- ruggedcom_rox_rx1400_firmware< 2.14.0
- ruggedcom_rox_rx1500_firmware< 2.14.0
- ruggedcom_rox_rx1501_firmware< 2.14.0
- ruggedcom_rox_rx1510_firmware< 2.14.0
Mozilla2 products
- network_security_services< 3.44
- nss≥ unspecified, < 3.44
Debian1 product
- nss< 2:3.45-1 | < 2:3.26-1+debu8u8
Ubuntu1 product
- nss< 2:3.28.4-0ubuntu0.14.04.5+esm3 | < 2:3.28.4-0ubuntu0.16.04.9 | < 2:3.35-2ubuntu2.6
5 vendors · 29 products
References
14 links- developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.44_release_notesX Refsource MISCRelease NotesVendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1533216X Refsource MISCExploitIssue TrackingPatchVendor Advisory
us-cert.cisa.gov/ics/advisories/icsa-21-040-04X Refsource MISCThird Party AdvisoryUS Government Resource
