VDB
CVE-2021-23177
CVE-2021-23177
PUBLISHED
CVSS 7.800000190734863 HIGH
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.
EPSS 0.39% · 31.7th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.39%
31.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:18.04:LTS | libarchive | 3.2.2-3.1ubuntu0.6, 3.2.2-3.1ubuntu0.4, 3.2.2-3.1ubuntu0.3 |
| Ubuntu:20.04:LTS | libarchive | 3.4.0-2ubuntu1, 0, 3.4.0-1 |
| Ubuntu:Pro:14.04:LTS | libarchive | 3.1.2-7ubuntu2.6, 3.1.2-7ubuntu2.8, 0 |
| Ubuntu:Pro:16.04:LTS | libarchive | 0, 3.1.2-11ubuntu0.16.04.2, 3.1.2-11ubuntu0.16.04.8+esm1 |
Timeline
- Dec 24, 2021 CVE Published
- Aug 24, 2022 EPSS Score
- Oct 9, 2022 EPSS Score
- Nov 25, 2022 EPSS Score
- Jan 10, 2023 EPSS Score
- Feb 26, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 13, 2023 EPSS Score
- May 29, 2023 EPSS Score
- Jul 15, 2023 EPSS Score
- Aug 30, 2023 EPSS Score
- Oct 15, 2023 EPSS Score
References
- https://www.cve.org/CVERecord?id=CVE-2021-23177 third-party-advisory
- https://ubuntu.com/security/CVE-2021-23177 advisory
- https://ubuntu.com/security/notices/USN-5291-1 advisory