Buffer over-read in Red Hat OpenStack - CVE-2017-9265
Published: September 14, 2017
Vulnerability identifier: #VU8431
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-2017-9265
CWE-ID: CWE-126
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 GroupMod OpenFlow messages. A remote attacker can send a specially crafted GroupMod OpenFlow message from the controller in lib/ofp-util.c in the ofputil_pull_ofp15_group_mod function, trigger buffer over-read 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 GroupMod OpenFlow messages. A remote attacker can send a specially crafted GroupMod OpenFlow message from the controller in lib/ofp-util.c in the ofputil_pull_ofp15_group_mod function, trigger buffer over-read and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
How to mitigate CVE-2017-9265
Install update from vendor's website.