Ubuntu.comUB:CVE-2021-20220CVE-2021-20220
4.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
37.8%
A flaw was found in Undertow. A regression in the fix for CVE-2020-10687
was found. HTTP request smuggling related to CVE-2017-2666 is possible
against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP
request. This flaw allows an attacker to poison a web-cache, perform an XSS
attack, or obtain sensitive information from request other than their own.
The highest threat from this vulnerability is to data confidentiality and
integrity.
Notes
| Author | Note |
|---|---|
| sbeattie | CVE for incomplete fix for CVE-2020-10687, after 2.0.30.SP4 |
Related
4.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
37.8%