---
cve: "CVE-2021-36976"
severity: "LOW"
cvss: 3.1
epss: "2.9%"
vendor: "n/a"
kev: false
exploited: false
published: "2021-07-20 07:15:07"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T00:42:54+02:00"
---

# CVE-2021-36976

> 3.1 LOW · 🧪 PoC

## Beschreibung

libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).

## Referenzen

- <https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libarchive/OSV-2021-557.yaml>
- <https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32375>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SE5NJQNM22ZE5Z55LPAGCUHSBQZBKMKC/>
- <https://support.apple.com/kb/HT213183>
- <https://support.apple.com/kb/HT213182>
- <https://support.apple.com/kb/HT213193>
- <http://seclists.org/fulldisclosure/2022/Mar/28>
- <http://seclists.org/fulldisclosure/2022/Mar/29>
- <http://seclists.org/fulldisclosure/2022/Mar/27>
- <https://security.gentoo.org/glsa/202208-26>
- <https://lists.debian.org/debian-lts-announce/2024/11/msg00007.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-36976) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_