Vulnerability Details : 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 from this vulnerability is to system availability. This flaw affects NSS versions before 3.58.
Vulnerability category: Denial of service
Products affected by CVE-2020-25648
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-25648
0.82%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-25648
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-25648
-
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2020-25648
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ERA5SVJQXQMDGES7RIT4F4NQVLD35RXN/
[SECURITY] Fedora 31 Update: nss-3.58.0-3.fc31 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Oracle Critical Patch Update Advisory - April 2022Not Applicable;Third Party Advisory
-
https://www.oracle.com//security-alerts/cpujul2021.html
Oracle Critical Patch Update Advisory - July 2021Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2023/10/msg00039.html
[SECURITY] [DLA 3634-1] nss security update
-
https://bugzilla.redhat.com/show_bug.cgi?id=1887319
1887319 – (CVE-2020-25648) CVE-2020-25648 nss: TLS 1.3 CCS flood remote DoS AttackIssue Tracking;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HRM53IQCPZT2US3M7JXTP6I6IBA5RGOD/
[SECURITY] Fedora 32 Update: nss-3.58.0-3.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E
[jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar - Pony MailMailing List;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RPOLN6DJUYQ3QBQEGLZGV73SNIPK7GHV/
[SECURITY] Fedora 33 Update: nss-3.58.0-3.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.58_release_notes
NSS 3.58 release notes - Mozilla | MDNRelease Notes;Vendor Advisory
-
https://www.oracle.com/security-alerts/cpuoct2021.html
Oracle Critical Patch Update Advisory - October 2021Patch;Third Party Advisory
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