CVE-2020-7070

Published: 2 October 2020

In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when PHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-8184 for more information.

Notes

Author	Note
sbeattie	PEAR issues should go against php-pear as of xenial

Priority

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package	Release	Status
php5 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	groovy	Does not exist
	trusty	Released (5.5.9+dfsg-1ubuntu4.29+esm13) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Needs triage
	xenial	Does not exist
	Patches: upstream: https://github.com/microsoft/php-src/commit/21babd0059d6661573b44349d5ee5589677b9645
php7.0 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	groovy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Released (7.0.33-0ubuntu0.16.04.16)
php7.2 Launchpad, Ubuntu, Debian	bionic	Released (7.2.24-0ubuntu0.18.04.7)
	focal	Does not exist
	groovy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
php7.4 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (7.4.3-4ubuntu2.4)
	groovy	Released (7.4.9-1ubuntu1.1)
	trusty	Does not exist
	upstream	Needs triage
	xenial	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	None
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›