Red Hat update for qemu-kvm-rhev
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 6 |
| CVE-ID | CVE-2018-15746 CVE-2018-17958 CVE-2018-17963 CVE-2019-6501 CVE-2019-6778 CVE-2019-9824 |
| CWE-ID | CWE-20 CWE-190 CWE-120 CWE-119 CWE-122 CWE-401 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Red Hat OpenStack for IBM Power Server applications / Other server solutions Red Hat OpenStack Server applications / Other server solutions |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 6 vulnerabilities.
1) Improper input validation
EUVDB-ID: #VU16553
Risk: Low
CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-15746
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows an adjacent attacker to cause DoS condition on the target system.
The vulnerability exists in qemu-seccomp.c due to an error when processing malicious input. An adjacent attacker can leverage mishandling of the seccomp policy for threads other than the main thread and cause the service to crash.
MitigationInstall updates from vendor's website.
Red Hat OpenStack for IBM Power: 13.0
Red Hat OpenStack: 10.0 - 13.0
CPE2.3- cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:13.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:13.0:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2019:2425
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Integer overflow
EUVDB-ID: #VU16554
Risk: Low
CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-17958
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows an adjacent attacker to cause DoS condition on the target system.
The vulnerability exists due to a boundary error in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used. An adjacent attacker can trigger integer overflow and cause the service to crash.
MitigationInstall updates from vendor's website.
Red Hat OpenStack for IBM Power: 13.0
Red Hat OpenStack: 10.0 - 13.0
CPE2.3- cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:13.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:13.0:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2019:2425
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Buffer overflow
EUVDB-ID: #VU15997
Risk: Low
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-17963
CWE-ID:
CWE-120 - Buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to buffer overflow when qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX. A remote attacker can supply specially crafted packets over the network, trigger memory corruption and crash the Qemu process.
MitigationInstall updates from vendor's website.
Red Hat OpenStack for IBM Power: 13.0
Red Hat OpenStack: 10.0 - 13.0
CPE2.3- cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:13.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:13.0:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2019:2425
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.
4) Buffer overflow
EUVDB-ID: #VU18274
Risk: Low
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2019-6501
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform denial of service attack.
The vulnerability exists due to a boundary error within the scsi_handle_inquiry_reply in hw/scsi/scsi-generic.c. A local user can create a specially crafted application, trigger buffer overflow and crash the affected emulator.
MitigationInstall updates from vendor's website.
Red Hat OpenStack for IBM Power: 13.0
Red Hat OpenStack: 10.0 - 13.0
CPE2.3- cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:13.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:13.0:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2019:2425
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Heap-based buffer overflow
EUVDB-ID: #VU18302
Risk: Low
CVSSv4.0: 4.3 [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-2019-6778
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the tcp_emu() function in slirp/tcp_subr.c. A local user can send specially crafted networking packets, trigger heap-based buffer overflow and crash the affected system.
MitigationInstall updates from vendor's website.
Red Hat OpenStack for IBM Power: 13.0
Red Hat OpenStack: 10.0 - 13.0
CPE2.3- cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:13.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:13.0:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2019:2425
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
6) Memory leak
EUVDB-ID: #VU18303
Risk: Low
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2019-9824
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to sensitive information on the system.
The vulnerability exists due memory leak within the SLiRP networking implementation. A local user can read uninitialised stack memory contents.
MitigationInstall updates from vendor's website.
Red Hat OpenStack for IBM Power: 13.0
Red Hat OpenStack: 10.0 - 13.0
CPE2.3- cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:13.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:13.0:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2019:2425
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
