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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2021-21374
HistoryMar 26, 2021 - 10:15 p.m.

CVE-2021-21374

2021-03-2622:15:12
Debian Security Bug Tracker
security-tracker.debian.org
12

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

53.3%

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 without full verification of the SSL/TLS certificate due to the default setting of httpClient. 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.

OSVersionArchitecturePackageVersionFilename
Debian12allnim< 1.4.6+really1.4.2-1nim_1.4.6+really1.4.2-1_all.deb
Debian11allnim< 1.4.6+really1.4.2-1nim_1.4.6+really1.4.2-1_all.deb
Debian999allnim< 1.4.6+really1.4.2-1nim_1.4.6+really1.4.2-1_all.deb
Debian13allnim< 1.4.6+really1.4.2-1nim_1.4.6+really1.4.2-1_all.deb

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

53.3%