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

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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