CVE-2021-28662

2021-05-2700:00:00

ubuntu.com

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.159 Low

EPSS

Percentile

95.9%

JSON

An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a
remote server sends a certain response header over HTTP or HTTPS, there is
a denial of service. This header can plausibly occur in benign network
traffic.

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988891>

Notes

Author	Note
mdeslaur	per upstream, all Squid older than 4.0 are not vulnerable.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchsquid< 4.10-1ubuntu1.4UNKNOWN
ubuntu20.10noarchsquid< 4.13-1ubuntu2.2UNKNOWN
ubuntu21.04noarchsquid< 4.13-1ubuntu4.1UNKNOWN
ubuntu21.10noarchsquid< 4.13-10ubuntu1UNKNOWN
ubuntu22.04noarchsquid< 4.13-10ubuntu1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	squid	< 4.10-1ubuntu1.4	UNKNOWN
ubuntu	20.10	noarch	squid	< 4.13-1ubuntu2.2	UNKNOWN
ubuntu	21.04	noarch	squid	< 4.13-1ubuntu4.1	UNKNOWN
ubuntu	21.10	noarch	squid	< 4.13-10ubuntu1	UNKNOWN
ubuntu	22.04	noarch	squid	< 4.13-10ubuntu1	UNKNOWN