CVE-2021-41072
CVSS V2 Medium 5.8
CVSS V3 High 8.1
Description
squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link and then contents under the same filename in a filesystem can cause unsquashfs to first create the symbolic link pointing outside the expected directory, and then the subsequent write operation will cause the unsquashfs process to write through the symbolic link elsewhere in the filesystem.
Overview
- CVE ID
- CVE-2021-41072
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-14T01:15:07
- Last Modified Date
- 2022-06-28T14:11:45
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:squashfs-tools_project:squashfs-tools:4.5:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 5.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/plougher/squashfs-tools/issues/72#issuecomment-913833405 | Exploit Third Party Advisory |
| https://github.com/plougher/squashfs-tools/commit/e0485802ec72996c20026da320650d8362f555bd | Patch Third Party Advisory |
| https://www.debian.org/security/2021/dsa-4987 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/10/msg00017.html | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-41072 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41072 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:48:11 | Added to TrackCVE | |||
| 2022-12-05 10:28:07 | 2021-09-14T01:15Z | 2021-09-14T01:15:07 | CVE Published Date | updated |
| 2022-12-05 10:28:07 | 2022-06-28T14:11:45 | CVE Modified Date | updated | |
| 2022-12-05 10:28:07 | Analyzed | Vulnerability Status | updated |