SB2016113005 - Ubuntu update for Linux kernel
Published: November 30, 2016 Updated: May 27, 2020
Security Bulletin ID
SB2016113005
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Privilege escalation (CVE-ID: CVE-2016-7097)
The vulnerability allows a local attacker to gain elevated privileges on the target system.The weakness exists due to the setgid bit being preserved during a setxattr call by the filesystem implementation. A local attacker can leverage the existence of a setgid program to gain group privileges.
Successful exploitation of the vulnerability results in privileges escalation.
2) Privilege escalation (CVE-ID: CVE-2016-7425)
The vulnerability allows a local user to gain elevated privileges on the target system.The weakness is due to insufficient restriction of length field by arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c. By sending an ARCMSR_MESSAGE_WRITE_WQBUFFER control code, attackers can gain elevated privileges and trigger a heap-based buffer overflow.
Success fule exploitation of the vulnerability may result in denial of service on the vulnerable system.
Remediation
Install update from vendor's website.