SB2017081032 - Denial of service in Linux Kernel
Published: August 10, 2017
Security Bulletin ID
SB2017081032
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Data handling (CVE-ID: CVE-2017-15127)
CWE-ID: CWE-19 - Data Handling
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local attacker to cause DOS condition on the target system.
The weakness exists in the hugetlb_mcopy_atomic_pte function in mm/hugetlb.c due to a superfluous implicit page unlock for VM_SHARED hugetlbfs mapping. A local attacker can cause the service to crash.
Remediation
Install update from vendor's website.