CVE-2021-3506

high

Description

An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1944298

https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html

https://security.netapp.com/advisory/ntap-20210611-0007/

https://www.openwall.com/lists/oss-security/2021/03/28/2

http://www.openwall.com/lists/oss-security/2021/05/08/1

Details

Source: Mitre, NVD

Published: 2021-04-19

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High