CVE-2022-1271
Published: August 31, 2023Last modified: August 31, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | gzip | Not affected (1.12-r1) |
| xz | Not affected (5.2.9-r0) | ||
| Stream | gzip | Not affected (1.13-r0) | |
| xz | Not affected (5.4.4-r0) |
References
- https://access.redhat.com/security/cve/CVE-2022-1271
- https://bugzilla.redhat.com/show_bug.cgi?id=2073310
- https://git.tukaani.org/?p=xz.git%3Ba=commit%3Bh=69d1b3fc29677af8ade8dc15dba83f0589cb63d6
- https://git.tukaani.org/?p=xz.git;a=commit;h=69d1b3fc29677af8ade8dc15dba83f0589cb63d6
- https://lists.gnu.org/r/bug-gzip/2022-04/msg00011.html
- https://security-tracker.debian.org/tracker/CVE-2022-1271
- https://security.gentoo.org/glsa/202209-01
- https://security.netapp.com/advisory/ntap-20220930-0006/
- https://tukaani.org/xz/xzgrep-ZDI-CAN-16587.patch
- https://www.openwall.com/lists/oss-security/2022/04/07/8