CVE-2020-6108: Vulnerability Analysis & Exploit Details

CVE-2020-6108 Vulnerability Summary

An exploitable code execution vulnerability exists in the fsck_chk_orphan_node functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can cause a heap buffer overflow resulting in a code execution. An attacker can provide a malicious file to trigger this vulnerability.

CVE-2020-6108: Detailed Information and External References

EPSS

0.00082

EPSS %

0.37380

References

0.00082

• https://security.gentoo.org/glsa/202101-26
• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1050

CWE

CWE-131

CAPEC

0.00082

• Overflow Buffers: Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an adversary. As a consequence, an adversary is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the adversaries' choice.
• Buffer Overflow via Parameter Expansion: In this attack, the target software is given input that the adversary knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.

Vulnerable Configurations

• cpe:2.3:a:f2fs-tools_project:f2fs-tools:1.12.0:*:*:*:*:*:*:*
  cpe:2.3:a:f2fs-tools_project:f2fs-tools:1.12.0:*:*:*:*:*:*:*
• cpe:2.3:a:f2fs-tools_project:f2fs-tools:1.13.0:*:*:*:*:*:*:*
  cpe:2.3:a:f2fs-tools_project:f2fs-tools:1.13.0:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H