Red Hat update for openvswitch
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2017-9214 CVE-2017-9263 CVE-2017-9265 |
| CWE-ID | CWE-191 CWE-20 CWE-126 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Red Hat OpenStack Server applications / Other server solutions |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Integer underflow
EUVDB-ID: #VU8433
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-9214
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the Open vSwitch (OvS) component due to unsigned integer underflow in the function ofputil_pull_queue_get_config_reply10 in lib/ofp-util.c. when parsing of OFPT_QUEUE_GET_CONFIG_REPLY messages. A remote attacker can send a specially crafted OFPT_QUEUE_GET_CONFIG_REPLY message, trigger buffer over-read and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Install updates from vendor's website.
Red Hat OpenStack: 7.0
CPE2.3 External linkshttp://access.redhat.com/errata/RHSA-2017:2698
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Improper input validation
EUVDB-ID: #VU8432
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-9263
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Red Hat OpenStack: 7.0
CPE2.3 External linkshttp://access.redhat.com/errata/RHSA-2017:2698
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Buffer over-read
EUVDB-ID: #VU8431
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-9265
CWE-ID:
CWE-126 - Buffer over-read
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Red Hat OpenStack: 7.0
CPE2.3 External linkshttp://access.redhat.com/errata/RHSA-2017:2698
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
