VDB
ALPINE-CVE-2021-31566
ALPINE-CVE-2021-31566
PUBLISHED
CVSS 7.800000190734863 HIGH
Record from OSV · Published August 23, 2022
An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. 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 gain more privileges in a system.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| libarchive | Alpine:v3.13 | 3.5.3-r0 |
| libarchive | Alpine:v3.14 | 3.5.3-r0 |
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
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.13 | libarchive | 3.4.3-r0, 2.8.4-r0, 2.8.4-r1 |
| Alpine:v3.14 | libarchive | 0, 2.8.4-r0, 2.8.4-r1 |
Timeline
- Aug 23, 2022 CVE Published
- Jun 15, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch
Query this with the API
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