CVE-2021-4217
Fixed in a distro release EPSS <1%
A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.
Products: unzip_project unzip, fedoraproject fedora, redhat enterprise_linux
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.17 | unzip | 6.0-r11 |
| Alpine 3.18 | unzip | 6.0-r11 |
| Alpine 3.19 | unzip | 6.0-r11 |
| Alpine 3.20 | unzip | 6.0-r11 |
| Alpine 3.21 | unzip | 6.0-r11 |
| Alpine 3.22 | unzip | 6.0-r11 |
| Alpine 3.23 | unzip | 6.0-r11 |
| Alpine 3.24 | unzip | 6.0-r11 |
| Amazon Linux 2 | unzip | 6.0-57.amzn2.0.1 |
| Amazon Linux 2023 | unzip | 6.0-57.amzn2023.0.2 |
| Debian 12 | unzip | no fix |
| Debian 13 | unzip | no fix |
| Debian 14 | unzip | no fix |
| Ubuntu 18.04 LTS | unzip | 6.0-21ubuntu1.2 |
| Ubuntu 20.04 LTS | unzip | 6.0-25ubuntu1.1 |
| Ubuntu 22.04 LTS | unzip | 6.0-26ubuntu3.1 |
| Ubuntu 24.04 LTS | unzip | 6.0-28ubuntu4.1 |
| Ubuntu Pro 14.04 LTS | unzip | 6.0-9ubuntu1.6+esm1 |
| Ubuntu Pro 16.04 LTS | unzip | 6.0-20ubuntu1.1+esm1 |