SB2017081909 - Incorrect calculation in Linux kernel f2fs
Published: August 19, 2017
Security Bulletin ID
SB2017081909
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect calculation (CVE-ID: CVE-2017-10662)
CWE-ID: CWE-682 - Incorrect Calculation
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to incorrect calculation within the sanity_check_raw_super() function in fs/f2fs/super.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://source.android.com/security/bulletin/2017-08-01
- https://github.com/torvalds/linux/commit/b9dd46188edc2f0d1f37328637860bb65a771124
- https://bugzilla.redhat.com/show_bug.cgi?id=1481146
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.1
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9dd46188edc2f0d1f37328637860bb65a771124
- http://www.securityfocus.com/bid/100215