Vulnerability identifier: #VU47656
Vulnerability risk: Low
CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-125
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
F2fs.Fsck
Other software /
Other software solutions
Vendor: F2fs-Tools
Description
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in the "get_dnode_of_data" functionality. A local administrator can use a specially crafted f2fs filesystem, trigger out-of-bounds read error and read contents of memory on the system.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
F2fs.Fsck: 1.13
External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1046
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.