CVE-2020-25648: fedoraproject fedora
CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2020-25648RHSA-2021:1384RHSA-2021:3572UBUNTU-CVE-2020-25648USN-5410-1DEBIAN-CVE-2020-25648
Published 20-10-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-25648 is a high (CVSS 7.5) vulnerability in fedoraproject fedora. EPSS estimates a 3.90% chance of exploitation in the next 30 days, higher than 90.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
3.90%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 7 · Related 5Timeline
- 20-10-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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 from this vulnerability is to system availability. This flaw affects NSS versions before 3.58.
CVSS metrics
6 scores · 5 sources · 2 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 5 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
3.90%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.90% on 18-09-2026
18-09-202618-10-2026
EPSS score3.90%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat23 products
- enterprise_linuxEOL7.0 | 8.0
- nspr< 0:4.32.0-1.el8_4
- nspr-debuginfo< 0:4.32.0-1.el8_4
- nspr-debugsource< 0:4.32.0-1.el8_4
- nspr-devel< 0:4.32.0-1.el8_4
Oracle3 products
- communications_offline_mediation_controller12.0.0.3.0
- communications_pricing_design_center12.0.0.3.0
- jd_edwards_enterpriseone_tools< 9.2.6.0
Alpine1 product
- nss< 3.58-r0
Debian1 product
- nss< 2:3.58-1
Fedoraproject1 product
- fedoraEOL31 | 32 | 33
Mozilla1 product
Ubuntu1 product
- nss< 2:3.35-2ubuntu2.14 | < 2:3.49.1-1ubuntu1.7
7 vendors · 31 products
References
34 links- developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.58_release_notesARTICLEREPORTRelease NotesVendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.apache.org/thread.html/…Mailing List
