CVE-2023-2253

Published: 6 June 2023

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.

Priority

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package	Release	Status
docker-registry Launchpad, Ubuntu, Debian	kinetic	Ignored (end of life, was needs-triage)
	jammy	Released (2.8.0+ds1-4ubuntu0.1~esm2) Available with Ubuntu Pro
	lunar	Released (2.8.1+ds1-2ubuntu1.1)
	upstream	Released (2.8.2+ds1-1)
	trusty	Ignored (end of standard support)
	xenial	Released (2.3.0~ds1-1ubuntu0.1~esm1) Available with Ubuntu Pro
	bionic	Released (2.6.2~ds1-1ubuntu0.1~esm1) Available with Ubuntu Pro
	focal	Released (2.7.1+ds2-7ubuntu0.3)

Severity score breakdown

Parameter	Value
Base score	6.5
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

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