CVE-2022-1271
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Gnu Gzip
PublishedAug 31, 2022
First seenAug 31, 2022
Weakness typeCWE-179CWE-179
How to fix
Update
- gnu gzip1.12 or later
- tukaani xz5.2.5 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu gzip | v < 1.12 | 1.12 |
| redhat jboss_data_grid | 7.0.0 | — |
| debian debian_linux | 10.0 | — |
| tukaani xz | v < 5.2.5 | 5.2.5 |
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