Improper input validation in Red Hat OpenStack - CVE-2017-9263
Published: September 14, 2017
Vulnerability identifier: #VU8432
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-9263
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Red Hat Inc.
Affected software:
Red Hat OpenStack
Red Hat OpenStack
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the Open vSwitch (OvS) component due to improper parsing of an OpenFlow role status message. A remote attacker with access to a malicious switch can send a specially crafted OpenFlow role status message, trigger a call to the abort() function for undefined role status reasons in the ofp_print_role_status_message function in lib/ofp-print.c and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists in the Open vSwitch (OvS) component due to improper parsing of an OpenFlow role status message. A remote attacker with access to a malicious switch can send a specially crafted OpenFlow role status message, trigger a call to the abort() function for undefined role status reasons in the ofp_print_role_status_message function in lib/ofp-print.c and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
How to mitigate CVE-2017-9263
Install update from vendor's website.