An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.
2022-08-31T16:15:09.347
2025-06-09T15:15:26.690
Modified
CVSSv3.1: 8.8 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | gnu | gzip | < 1.12 | Yes |
| Application | redhat | jboss_data_grid | 7.0.0 | Yes |
| Operating System | debian | debian_linux | 10.0 | Yes |
| Application | tukaani | xz | < 5.2.5 | Yes |