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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

Medium

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)
upstream
Released (2.8.2+ds1-1)
jammy
Released (2.8.0+ds1-4ubuntu0.1~esm2)
Available with Ubuntu Pro
lunar
Released (2.8.1+ds1-2ubuntu1.1)
bionic
Released (2.6.2~ds1-1ubuntu0.1~esm1)
Available with Ubuntu Pro
xenial
Released (2.3.0~ds1-1ubuntu0.1~esm1)
Available with Ubuntu Pro
trusty Ignored
(end of standard support)
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