7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 High
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.927 High
EPSS
Percentile
99.0%
Joshua Rogers discovered that Squid incorrectly handled requests with the
urn: scheme. A remote attacker could possibly use this issue to cause
Squid to consume resources, leading to a denial of service.
(CVE-2021-28651)
Joshua Rogers discovered that Squid incorrectly handled requests to the
Cache Manager API. A remote attacker with access privileges could possibly
use this issue to cause Squid to consume resources, leading to a denial of
service. This issue was only addressed in Ubuntu 20.04 LTS, Ubuntu 20.10,
and Ubuntu 21.04. (CVE-2021-28652)
Joshua Rogers discovered that Squid incorrectly handled certain response
headers. A remote attacker could possibly use this issue to cause Squid to
crash, resulting in a denial of service. This issue was only affected
Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-28662)
Joshua Rogers discovered that Squid incorrectly handled range request
processing. A remote attacker could possibly use this issue to cause Squid
to crash, resulting in a denial of service. (CVE-2021-31806,
CVE-2021-31807, CVE-2021-31808)
Joshua Rogers discovered that Squid incorrectly handled certain HTTP
responses. A remote attacker could possibly use this issue to cause Squid
to crash, resulting in a denial of service. (CVE-2021-33620)
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 High
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.927 High
EPSS
Percentile
99.0%