Vulnerability · Published Oct 15, 2020 · Assigned by talos
CVE-2020-6104
Medium 4.4
In plain English
A medium-severity out-of-bounds read in F2FS-Tools. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.0)4.4Medium
Exploit odds (30 days)1.5%top 25.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An exploitable information disclosure vulnerability exists in the get_dnode_of_data functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can cause information disclosure resulting in a information disclosure. An attacker can provide a malicious file to trigger this vulnerability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | f2fs-tools | 1.14.0-r0 | ALPINE-CVE-2020-6104 |
| Alpine:v3.21 | f2fs-tools | 1.14.0-r0 | ALPINE-CVE-2020-6104 |
| Alpine:v3.22 | f2fs-tools | 1.14.0-r0 | ALPINE-CVE-2020-6104 |
| Alpine:v3.23 | f2fs-tools | 1.14.0-r0 | ALPINE-CVE-2020-6104 |
| Alpine:v3.24 | f2fs-tools | 1.14.0-r0 | ALPINE-CVE-2020-6104 |
| Debian:12 | f2fs-tools | 1.14.0-1 | DEBIAN-CVE-2020-6104 |
| Debian:13 | f2fs-tools | 1.14.0-1 | DEBIAN-CVE-2020-6104 |
| Debian:14 | f2fs-tools | 1.14.0-1 | DEBIAN-CVE-2020-6104 |
| Ubuntu:22.04:LTS | f2fs-tools | no fix listed | UBUNTU-CVE-2020-6104 |
| Ubuntu:24.04:LTS | f2fs-tools | no fix listed | UBUNTU-CVE-2020-6104 |
| Ubuntu:25.10 | f2fs-tools | no fix listed | UBUNTU-CVE-2020-6104 |
| Ubuntu:26.04:LTS | f2fs-tools | no fix listed | UBUNTU-CVE-2020-6104 |
| Ubuntu:26.10 | f2fs-tools | no fix listed | UBUNTU-CVE-2020-6104 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | F2FS-Tools | F2fs-Tools F2fs.Fsck 1.13 |
Weakness: CWE-125 · Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1046 x_refsource_MISC
- GLSA-202101-26 vendor-advisory, x_refsource_GENTOO