Executive Summary

Informations
Name CVE-2020-25705 First vendor Publication 2020-11-17
Vendor Cve Last vendor Modification 2020-12-18

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Overall CVSS Score 7.4
Base Score 7.4 Environmental Score 7.4
impact SubScore 5.2 Temporal Score 7.4
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:N)
Cvss Base Score 5.8 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A flaw in the way reply ICMP packets are limited in the Linux kernel functionality was found that allows to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. Kernel versions before 5.10 may be vulnerable to this issue.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25705

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-330 Use of Insufficiently Random Values

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3363
Os 2

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20201210-0002/
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1894579
MLIST https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html

Alert History

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Date Informations
2021-01-14 01:32:12
  • Multiple Updates
2021-01-13 01:31:04
  • Multiple Updates
2020-12-18 17:22:47
  • Multiple Updates
2020-12-15 00:22:49
  • Multiple Updates
2020-12-12 09:22:48
  • Multiple Updates
2020-12-11 05:22:47
  • Multiple Updates
2020-12-08 21:24:17
  • Multiple Updates
2020-12-08 00:22:52
  • Multiple Updates
2020-12-07 21:23:24
  • Multiple Updates
2020-12-05 05:22:53
  • Multiple Updates
2020-12-02 17:22:50
  • Multiple Updates
2020-11-18 01:31:37
  • Multiple Updates
2020-11-18 01:29:42
  • Multiple Updates
2020-11-17 17:22:55
  • Multiple Updates
2020-11-17 09:22:56
  • First insertion