ALPINE-CVE-2021-31566

Source
https://security.alpinelinux.org/vuln/CVE-2021-31566
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-31566.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2021-31566
Upstream
Published
2022-08-23T16:15:09Z
Modified
2025-09-30T05:21:19.540148Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Alpine:v3.13 / libarchive

Package

Name
libarchive
Purl
pkg:apk/alpine/libarchive?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.3-r0

Affected versions

2.*

2.8.4-r0
2.8.4-r1
2.8.4-r2
2.8.5-r0

3.*

3.0.2-r0
3.0.3-r0
3.0.4-r0
3.1.2-r0
3.1.2-r1
3.1.2-r2
3.2.0-r0
3.2.1-r0
3.2.1-r1
3.2.2-r0
3.2.2-r1
3.3.1-r0
3.3.1-r1
3.3.2-r0
3.3.2-r1
3.3.2-r2
3.3.2-r3
3.3.2-r4
3.3.3-r0
3.4.0-r0
3.4.1-r0
3.4.2-r0
3.4.3-r0
3.5.0-r0
3.5.1-r0
3.5.2-r0

Alpine:v3.14 / libarchive

Package

Name
libarchive
Purl
pkg:apk/alpine/libarchive?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.3-r0

Affected versions

2.*

2.8.4-r0
2.8.4-r1
2.8.4-r2
2.8.5-r0

3.*

3.0.2-r0
3.0.3-r0
3.0.4-r0
3.1.2-r0
3.1.2-r1
3.1.2-r2
3.2.0-r0
3.2.1-r0
3.2.1-r1
3.2.2-r0
3.2.2-r1
3.3.1-r0
3.3.1-r1
3.3.2-r0
3.3.2-r1
3.3.2-r2
3.3.2-r3
3.3.2-r4
3.3.3-r0
3.4.0-r0
3.4.1-r0
3.4.2-r0
3.4.3-r0
3.5.0-r0
3.5.1-r0
3.5.2-r0