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CVE-2017-10663

Date: August 19, 2017

The sanity_check_ckpt function in fs/f2fs/super.c in the Linux kernel before 4.12.4 does not validate the blkoff and segno arrays, which allows local users to gain privileges via unspecified vectors.

Language: C

Severity Score

7.8

Related Resources (10)

Url: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=15d3042a937c13f5d9244241c7a9c8416ff6e82a

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1481149

Url: http://www.securityfocus.com/bid/100215

Url: https://nvd.nist.gov/vuln/detail/CVE-2017-10663

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2017-10663

Url: https://github.com/torvalds/linux/commit/15d3042a937c13f5d9244241c7a9c8416ff6e82a

Url: https://source.android.com/security/bulletin/2017-08-01

Url: http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4

Url: https://security-tracker.debian.org/tracker/CVE-2017-10663

Url: https://www.mend.io/vulnerability-database/CVE-2017-10663

Severity Score

7.8

Weakness Type (CWE)

Improper Validation of Array Index

CWE-129

CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.2
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	COMPLETE
Integrity (I):	COMPLETE
Availability (A):	COMPLETE
Additional information:

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