It was found that the sanity_check_raw_super() function in 'fs/f2fs/super.c' file in the Linux kernel before version 4.12-rc1 does not validate the f2fs filesystem segment count. This allows an unprivileged local user to cause a system panic and DoS. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.
Find out more about CVE-2017-10662 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2 as the code with the flaw is not built and shipped with the products listed.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 4.7 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Local |
Attack Complexity | High |
Privileges Required | Low |
User Interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity Impact | None |
Availability Impact | High |
Platform | Package | State |
---|---|---|
Red Hat Enterprise MRG 2 | realtime-kernel | Not affected |
Red Hat Enterprise Linux 7 | kernel | Not affected |
Red Hat Enterprise Linux 7 | kernel-rt | Not affected |
Red Hat Enterprise Linux 7 | kernel-alt | Not affected |
Red Hat Enterprise Linux 6 | kernel | Not affected |
Red Hat Enterprise Linux 5 | kernel | Not affected |