Out-of-bounds read in Linux kernel - CVE-2017-9074

 

Out-of-bounds read in Linux kernel - CVE-2017-9074

Published: June 29, 2017 / Updated: July 3, 2017


Vulnerability identifier: #VU7245
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2017-9074
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to the the failure to consider that the nexthdr field may be associated with an invalid option by the IPv6 fragmentation implementation. A local attacker can use a specially-crafted socket or system call to trigger out-of-bounds read and cause the system to crash.

Successful exploitation of the vulnerability results in denial of service.

How to mitigate CVE-2017-9074

Update to version 4.11.2.

Sources