---
cve: "CVE-2025-64031"
severity: "LOW"
cvss: 2.5
epss: "12%"
vendor: "libarchive"
kev: false
exploited: false
published: "2026-09-14 01:16:26"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T03:49:18+02:00"
---

# CVE-2025-64031

> 2.5 LOW · 🧪 PoC

## Beschreibung

libarchive 3.8.x before 3.8.2 has a strcpy heap-based buffer overflow in the gzip writer via the original-filename field to archive_compressor_gzip_open in archive_write_add_filter_gzip.c, aka GHSA-92wx-p669-8gr9. This relates to bsdtar. Exploitation envisions a marginally plausible scenario in which original-filename is obtained from an untrusted party. (original-filename is not derived from the input data.)

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- 7f53fce04e4e672230f4eb80b219af17975e4f83 (Commit)

## Referenzen

- <https://github.com/libarchive/libarchive/pull/2734>
- <https://github.com/libarchive/libarchive/pull/2734/commits>
- <https://github.com/libarchive/libarchive/pull/2734/files>
- <https://github.com/libarchive/libarchive/blob/master/libarchive/archive_write_add_filter_gzip.c>
- <https://gist.github.com/ttuurrnn/1365a4a9b1c3d5826a3a9bbe111f26b8>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-64031) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_