CVE-2020-15113

In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).

Status

Show unmaintained releases

Package	Ubuntu Release	Status
etcd	24.04 LTS noble	Vulnerable
	23.10 mantic	Ignored
	23.04 lunar	Ignored
	22.10 kinetic	Ignored
	22.04 LTS jammy	Vulnerable
	21.10 impish	Ignored
	21.04 hirsute	Ignored
	20.10 groovy	Ignored
	20.04 LTS focal	Fixed 3.2.26+dfsg-6ubuntu0.1
	18.04 LTS bionic	Fixed 3.2.17+dfsg-1ubuntu0.1+esm1 Ubuntu Pro
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Not in release

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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
etcd	Upstream: ac37d34

Severity score breakdown

Parameter	Value
Base score	7.1 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVE-2020-15113

Cvss 3 Severity Score

Status

Get expanded security coverage with Ubuntu Pro

Patch details

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references