CVE-2016-5404

Publication date 7 September 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The cert_revoke command in FreeIPA does not check for the "revoke certificate" permission, which allows remote authenticated users to revoke arbitrary certificates by leveraging the "retrieve certificate" permission.

From the Ubuntu Security Team

It was discovered that FreeIPA incorrectly handled certificates. An attacker could possibly use this issue to cause a denial of service by revoking arbitrary certificates.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
freeipa	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Not affected
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 4.3.1-0ubuntu1+esm1 Ubuntu Pro
	14.04 LTS trusty	Not affected
	12.04 LTS precise	Ignored end of life

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
freeipa	Upstream: ?id=cf7

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H