SB2017082507 - Denial of service in Linux Kernel
Published: August 25, 2017 Updated: May 28, 2018
Security Bulletin ID
SB2017082507
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Use-after-free error (CVE-ID: CVE-2017-17052)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the mm_init function in kernel/fork.c due to improper clarification of the ->exe_file member of a new process's mm_struct. A local attacker can trigger use after free error and cause the service to crash.
2) Use-after-free error (CVE-ID: CVE-2018-10675)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the do_get_mempolicy function in mm/mempolicy.c due to use-after-free error. A local attacker can use specially crafted system calls, trigger memory corruption and cause the service to crash.
The weakness exists in the do_get_mempolicy function in mm/mempolicy.c due to use-after-free error. A local attacker can use specially crafted system calls, trigger memory corruption and cause the service to crash.
Remediation
Install update from vendor's website.