Vulnerability identifier: #VU56690

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-40330

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Git
Client/Desktop applications / Software for system administration

Vendor: Git

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in the git_connect_git in connect.c. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Git: 2.30.0

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External links
http://github.com/git/git/commit/a02ea577174ab8ed18f847cf1693f213e0b9c473
http://github.com/git/git/compare/v2.30.0...v2.30.1

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.