Vulnerability Description
libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).
CVSS Score
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libarchive | Libarchive | >= 3.4.1, <= 3.5.2 |
| Fedoraproject | Fedora | 35 |
| Apple | Ipados | < 15.4 |
| Apple | Iphone Os | < 15.4 |
| Apple | Macos | < 12.3 |
| Apple | Watchos | < 8.5 |
| Splunk | Universal Forwarder | >= 8.2.0, < 8.2.12 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2022/Mar/27Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2022/Mar/28Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2022/Mar/29Mailing ListThird Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32375Issue TrackingThird Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libarchive/OSV-2021-557Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202208-26Third Party Advisory
- https://support.apple.com/kb/HT213182Third Party Advisory
- https://support.apple.com/kb/HT213183Third Party Advisory
- https://support.apple.com/kb/HT213193Third Party Advisory
- http://seclists.org/fulldisclosure/2022/Mar/27Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2022/Mar/28Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2022/Mar/29Mailing ListThird Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32375Issue TrackingThird Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libarchive/OSV-2021-557Third Party Advisory
FAQ
What is CVE-2021-36976?
CVE-2021-36976 is a vulnerability with a CVSS score of 6.5 (MEDIUM). libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).
How severe is CVE-2021-36976?
CVE-2021-36976 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-36976?
Check the references section above for vendor advisories and patch information. Affected products include: Libarchive Libarchive, Fedoraproject Fedora, Apple Ipados, Apple Iphone Os, Apple Macos.