A heap-based buffer overflow exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service or to possibly achieve code execution.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-1000032 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of unzip as shipped with Red Hat Enterprise Linux 5, 6, and 7, as they did not include the function charset_to_intern, or the code is different and does not contain the vulnerable part.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 7 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | High |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | unzip | Not affected |
| Red Hat Enterprise Linux 6 | unzip | Not affected |
| Red Hat Enterprise Linux 5 | unzip | Not affected |
Vulmon