CVE-2021-21373 Common Vulnerabilities and Exposures

Upstream information

CVE-2021-21373 at MITRE

Description

Nimble is a package manager for the Nim programming language. In Nim release versions before versions 1.2.10 and 1.4.4, "nimble refresh" fetches a list of Nimble packages over HTTPS by default. In case of error it falls back to a non-TLS URL http://irclogs.nim-lang.org/packages.json. An attacker able to perform MitM can deliver a modified package list containing malicious software packages. If the packages are installed and used the attack escalates to untrusted code execution.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
CVSS detail	National Vulnerability Database
Base Score	4.3
Vector	AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector	Network
Access Complexity	Medium
Authentication	None
Confidentiality Impact	None
Integrity Impact	Partial
Availability Impact	None

CVSS v3 Scores
CVSS detail	National Vulnerability Database
Base Score	5.9
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	None
Integrity Impact	High
Availability Impact	None
CVSSv3 Version	3.1

SUSE Bugzilla entry: 1185084 [IN_PROGRESS]

SUSE Security Advisories:

openSUSE-SU-2021:0618-1, published Mon Apr 26 00:40:32 2021
openSUSE-SU-2021:0628-1, published Thu Apr 29 21:39:36 2021
openSUSE-SU-2022:10095-1, published Wed Aug 24 10:48:30 2022
openSUSE-SU-2022:10101-1, published Sat Aug 27 18:50:23 2022

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Package Hub 15 SP2	`nim >= 1.2.12-bp152.4.3.1`	Patchnames: openSUSE-2021-628
SUSE Package Hub 15 SP3	`nim >= 1.6.6-bp153.2.3.1`	Patchnames: openSUSE-2022-10095
SUSE Package Hub 15 SP4	`nim >= 1.6.6-bp154.2.3.1`	Patchnames: openSUSE-2022-10101
openSUSE Leap 15.2	`nim >= 1.2.12-lp152.2.3.1`	Patchnames: openSUSE-2021-618
openSUSE Leap 15.3	`nim >= 1.6.6-bp153.2.3.1`	Patchnames: openSUSE-2022-10095
openSUSE Leap 15.4	`nim >= 1.6.6-bp154.2.3.1`	Patchnames: openSUSE-2022-10101
openSUSE Tumbleweed	`nim >= 1.2.12-1.7`	Patchnames: openSUSE-Tumbleweed-2024-11093

SUSE Timeline for this CVE

CVE page created: Sat Mar 27 16:53:05 2021
CVE page last modified: Sat Nov 1 22:23:06 2025