It was found that the Git client printed server-sent ANSI escape codes to the terminal without any sanitization, leading to execution of arbitrary escape sequences in the terminal emulator. Exploitation of this flaw by a MitM attacker could potentially result in code execution, arbitrary file writes, or other attacks under highly specific circumstances dependent on the usage of a vulnerable terminal emulator by the user.
Find out more about CVE-2018-1000021 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity Impact | Low |
| Availability Impact | Low |
| Platform | Package | State |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-git29-git | Will not fix |
| Red Hat Enterprise Linux 7 | git | Will not fix |
| Red Hat Enterprise Linux 6 | git | Will not fix |
Vulmon