SB2018072804 - OpenSUSE Linux update for the Linux Kernel
Published: July 28, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Integer overflow (CVE-ID: CVE-2018-13053)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists in kernel/time/alarmtimer.c within the alarm_timer_nsleep function. A local user can trigger integer overflow due to ktime_add_safe is not used and escalate privileges on the system.
2) Security restrictions bypass (CVE-ID: CVE-2018-13405)
The vulnerability allows a local attacker to create arbitrary files on the target system.
The vulnerability exists due to the inode_init_owner function, as defined in the fs/inode.c source code file, allows the creation of arbitrary files in set-group identification (SGID) directories. A local attacker can create arbitrary files with unintended group ownership.
3) Integer overflow (CVE-ID: CVE-2018-13406)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to integer overflow in the uvesafb_setcmap function, as defined in the drivers/video/fbdev/uvesafb.c source code file. A local attacker can execute a file or program that submits malicious input, trigger memory corruption and cause the affected software to crash.
4) Out-of-bounds write (CVE-ID: CVE-2018-9385)
The vulnerability allows a local authenticated user to execute arbitrary code.
In driver_override_store of bus.c, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-74128061 References: Upstream kernel.
Remediation
Install update from vendor's website.