SB2020042733 - Multiple vulnerabilities in libgit2

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Main Vulnerability Database SB2020042733

SB2020042733 - Multiple vulnerabilities in libgit2

Published: April 27, 2020 Updated: February 7, 2024

Security Bulletin ID SB2020042733
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Use of Incorrectly-Resolved Name or Reference (CVE-ID: CVE-2020-12278)

CWE-ID: CWE-706 - Use of Incorrectly-Resolved Name or Reference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper handling of equivalent filenames that exist because of NTFS Alternate Data Streams in path.c. A remote attacker can trick the victim into cloning a specially crafted repository and execute arbitrary code on the system.


2) Use of Incorrectly-Resolved Name or Reference (CVE-ID: CVE-2020-12279)

CWE-ID: CWE-706 - Use of Incorrectly-Resolved Name or Reference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper handling of equivalent filenames that exist because of NTFS short names in checkout.c. A remote attacker can trick the victim into cloning a specially crafted repository and execute arbitrary code on the system.

Remediation

Install update from vendor's website.

References