SB2017101917 - SUSE Linux update for Linux Kernel Live Patch 14 for SLE 12 SP1
Published: October 19, 2017
Security Bulletin ID
SB2017101917
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Stack-based buffer overflow (CVE-ID: CVE-2017-1000251)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows an adjacent attacker to execute arbitrary code on the host system.
The weakness exists due to a stack-based buffer overflow in the processing of L2CAP configuration. An adjacent attacker can submit a specially crafted Bluetooth protocol, trigger memory corruption in the Bluetooth stack and execute arbitrary code in kernel space.
Successful exploitation of the vulnerability may result in host system compromise.
2) NULL pointer dereference (CVE-ID: CVE-2017-15274)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 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/E:U/U:Clear
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in he security/keys/keyctl.c due to a NULL pointer dereference. A local attacker can create a specially crafted add_key or keyctl system call and cause a denial of service.
Remediation
Install update from vendor's website.