Resource exhaustion in Mozilla Network_security_services
CVE-2020-25648
A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat…
EPSS: 0.039 (89.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mozilla Network_security_services
- Oracle Communications_offline_mediation_controller — versions 12.0.0.3.0
- Oracle Communications_pricing_design_center — versions 12.0.0.3.0
- Oracle Jd_edwards_enterpriseone_tools
- Fedoraproject Fedora — versions 31, 32, 33
- Redhat Enterprise_linux — versions 7.0, 8.0
- N/a Nss — versions nss versions before 3.58
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Release Notes, Vendor Advisory)
- secalert@redhat.com (vendor-advisory)
- secalert@redhat.com (vendor-advisory)
- secalert@redhat.com (vendor-advisory)
- secalert@redhat.com (mailing-list)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (Third Party Advisory, Not Applicable)
- secalert@redhat.com (mailing-list)
Frequently asked questions
- What is CVE-2020-25648?
- CVE-2020-25648 is a high-severity vulnerability in Mozilla Network_security_services, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2020-10-20.
- How severe is CVE-2020-25648?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-25648 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.