CVE-2023-2253

Publication date 6 June 2023

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

A flaw was found in the `/v2/_catalog` endpoint in distribution/distribution, which accepts a parameter to control the maximum number of records returned (query string: `n`). This vulnerability allows a malicious user to submit an unreasonably large value for `n,` causing the allocation of a massive string array, possibly causing a denial of service through excessive use of memory.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
docker-registry	23.04 lunar	Fixed 2.8.1+ds1-2ubuntu1.1
	22.10 kinetic	Ignored
	22.04 LTS jammy	Fixed 2.8.0+ds1-4ubuntu0.1~esm2 Ubuntu Pro
	20.04 LTS focal	Fixed 2.7.1+ds2-7ubuntu0.3
	18.04 LTS bionic	Fixed 2.6.2~ds1-1ubuntu0.1~esm1 Ubuntu Pro
	16.04 LTS xenial	Fixed 2.3.0~ds1-1ubuntu0.1~esm1 Ubuntu Pro
	14.04 LTS trusty	Ignored

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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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-6336-1
Docker Registry vulnerabilities
4 September 2023