CVE-2021-28116

Published: 9 March 2021

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.

Priority

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package	Release	Status
squid Launchpad, Ubuntu, Debian	impish	Released (4.13-10ubuntu5)
	jammy	Released (4.13-10ubuntu5)
	lunar	Released (4.13-10ubuntu5)
	upstream	Released (4.17)
	groovy	Ignored (end of life)
	focal	Released (4.10-1ubuntu1.5)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Released (4.13-1ubuntu4.2)
	kinetic	Released (4.13-10ubuntu5)
	Patches: upstream: http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_12.patch
squid3 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	xenial	Needed
	upstream	Needs triage
	trusty	Does not exist
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	bionic	Released (3.5.27-1ubuntu1.12)
	kinetic	Does not exist
	lunar	Does not exist

Severity score breakdown

Parameter	Value
Base score	5.3
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Bugs

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