high7.8
CVE-2021-23177
An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link.
Impact
An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Libarchive | Libarchive | before 3.5.2 |
| Fedoraproject | Fedora | Version 35 |
| Redhat | Enterprise Linux | Version 8.0 |
| Redhat | Enterprise Linux Eus | Version 8.6 |
| Redhat | Enterprise Linux For Ibm Z Systems | Version 8.0 |
| Redhat | Enterprise Linux For Ibm Z Systems Eus | Version 8.6 |
| Redhat | Enterprise Linux For Power Little Endian | Version 8.0 |
| Redhat | Enterprise Linux For Power Little Endian Eus | Version 8.6 |
| Redhat | Enterprise Linux Server Aus | Version 8.6 |
| Redhat | Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions | Version 8.6 |
| Redhat | Enterprise Linux Server Tus | Version 8.6 |
| Redhat | Codeready Linux Builder | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/security/cve/CVE-2021-23177
- https://bugzilla.redhat.com/show_bug.cgi?id=2024245
- https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad
- https://github.com/libarchive/libarchive/issues/1565
- https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html
- https://access.redhat.com/security/cve/CVE-2021-23177
- https://bugzilla.redhat.com/show_bug.cgi?id=2024245
- https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad
- https://github.com/libarchive/libarchive/issues/1565
- https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html