Executive Summary

Informations
Name CVE-2021-39242 First vendor Publication 2021-08-17
Vendor Cve Last vendor Modification 2021-09-14

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39242

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-755 Improper Handling of Exceptional Conditions

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 86
Os 1
Os 2

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2021/dsa-4960
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://git.haproxy.org/?p=haproxy.git;a=commit;h=b5d2b9e154d78e4075db163826c...
https://www.mail-archive.com/haproxy@formilux.org/msg41041.html

Alert History

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Date Informations
2021-09-15 00:23:05
  • Multiple Updates
2021-08-27 09:22:56
  • Multiple Updates
2021-08-25 17:22:50
  • Multiple Updates
2021-08-19 09:22:50
  • Multiple Updates
2021-08-18 09:23:01
  • Multiple Updates
2021-08-18 00:22:50
  • First insertion