SB2017051605 - Ubuntu update for Linux kernel (HWE)
Published: May 16, 2017
Security Bulletin ID
SB2017051605
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2017-7477)
The vulnerability allows a remote attacker on the local network execute arbitrary code on the target system.The weakness exists due to heap-based buffer overflow in the skb_to_sgvec() function in the MACsec driver. A remote attacker can use a MAX_SKB_FRAGS+1 size in conjunction with the NETIF_F_FRAGLIST feature, trigger memory corruption and execute arbitrary code with root privileges.
Successful exploitation of the vulnerability results in arbitrary code execution.Remediation
Install update from vendor's website.