CVE-2021-28116

2021-03-0900:00:00

ubuntu.com

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.041 Low

EPSS

Percentile

92.0%

JSON

Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows
information disclosure because of an out-of-bounds read in WCCP protocol
data. This can be leveraged as part of a chain for remote code execution as
nobody.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchsquid< 4.10-1ubuntu1.5UNKNOWN
ubuntu21.04noarchsquid< 4.13-1ubuntu4.2UNKNOWN
ubuntu21.10noarchsquid< 4.13-10ubuntu5UNKNOWN
ubuntu22.04noarchsquid< 4.13-10ubuntu5UNKNOWN
ubuntu22.10noarchsquid< 4.13-10ubuntu5UNKNOWN
ubuntu23.04noarchsquid< 4.13-10ubuntu5UNKNOWN
ubuntu23.10noarchsquid< 4.13-10ubuntu5UNKNOWN
ubuntu18.04noarchsquid3< 3.5.27-1ubuntu1.12UNKNOWN
ubuntu16.04noarchsquid3< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	squid	< 4.10-1ubuntu1.5	UNKNOWN
ubuntu	21.04	noarch	squid	< 4.13-1ubuntu4.2	UNKNOWN
ubuntu	21.10	noarch	squid	< 4.13-10ubuntu5	UNKNOWN
ubuntu	22.04	noarch	squid	< 4.13-10ubuntu5	UNKNOWN
ubuntu	22.10	noarch	squid	< 4.13-10ubuntu5	UNKNOWN
ubuntu	23.04	noarch	squid	< 4.13-10ubuntu5	UNKNOWN
ubuntu	23.10	noarch	squid	< 4.13-10ubuntu5	UNKNOWN
ubuntu	18.04	noarch	squid3	< 3.5.27-1ubuntu1.12	UNKNOWN
ubuntu	16.04	noarch	squid3	< any	UNKNOWN