CVE-2020-28241

Publication date 6 November 2020

Last updated 18 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libmaxminddb	25.10 questing	Fixed 1.4.2-0ubuntu2
	25.04 plucky	Fixed 1.4.2-0ubuntu2
	24.10 oracular	Fixed 1.4.2-0ubuntu2
	24.04 LTS noble	Fixed 1.4.2-0ubuntu2
	23.10 mantic	Fixed 1.4.2-0ubuntu2
	23.04 lunar	Fixed 1.4.2-0ubuntu2
	22.10 kinetic	Fixed 1.4.2-0ubuntu2
	22.04 LTS jammy	Fixed 1.4.2-0ubuntu2
	21.10 impish	Fixed 1.4.2-0ubuntu2
	21.04 hirsute	Fixed 1.4.2-0ubuntu2
	20.10 groovy	Fixed 1.4.2-0ubuntu1.20.10.1
	20.04 LTS focal	Fixed 1.4.2-0ubuntu1.20.04.1
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Fixed 1.0.4-2.1ubuntu0.1~esm1
	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
libmaxminddb	Upstream: https://github.com/maxmind/libmaxminddb/pull/237 Upstream: eac45e2

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H