Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Title git security update
Name DSA-4581 First vendor Publication 2019-12-10
Vendor Debian Last vendor Modification 2019-12-10
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
Attack Vector Local Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Several vulnerabilities have been discovered in git, a fast, scalable, distributed revision control system.


It was reported that the --export-marks option of git fast-import is exposed also via the in-stream command feature export-marks=..., allowing to overwrite arbitrary paths.


It was discovered that submodule names are not validated strictly enough, allowing very targeted attacks via remote code execution when performing recursive clones.


Joern Schneeweisz reported a vulnerability, where a recursive clone followed by a submodule update could execute code contained within the repository without the user explicitly having asked for that. It is now disallowed for `.gitmodules` to have entries that set `submodule..update=!command`.

In addition this update addresses a number of security issues which are only an issue if git is operating on an NTFS filesystem (CVE-2019-1349, CVE-2019-1352 and CVE-2019-1353).

For the oldstable distribution (stretch), these problems have been fixed in version 1:2.11.0-3+deb9u5.

For the stable distribution (buster), these problems have been fixed in version 1:2.20.1-2+deb10u1.

We recommend that you upgrade your git packages.

For the detailed security status of git please refer to its security tracker page at: https://security-tracker.debian.org/tracker/git

Original Source

Url : http://www.debian.org/security/2019/dsa-4581

CWE : Common Weakness Enumeration

% Id Name
67 % CWE-20 Improper Input Validation
33 % CWE-78 Improper Sanitization of Special Elements used in an OS Command ('OS Command Injection') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

Application 631
Application 9
Application 10
Os 2
Os 1
Os 1

Alert History

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Date Informations
2020-05-23 13:03:42
  • Multiple Updates
2019-12-10 21:19:27
  • First insertion