OpenSUSE Linux update for libvirt
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2017-5715 CVE-2018-1064 CVE-2018-6764 |
| CWE-ID | CWE-200 CWE-400 CWE-264 |
| Exploitation vector | Local network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Intel CPU Hardware solutions / Firmware libvirt Universal components / Libraries / Libraries used by multiple products |
| Vendor |
Intel libvirt.org |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU9883
Risk: Low
CVSSv3.1: 5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2017-5715
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists in Intel CPU hardware due to improper implementation of the speculative execution of instructions. A local attacker can utilize branch target injection, execute arbitrary code, perform a side-channel attack and read sensitive memory information.
MitigationUpdate the affected packages.
Intel CPU: All versions
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-04/msg00011.html
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. However, proof of concept for this vulnerability is available.
2) Resource exhaustion
EUVDB-ID: #VU11450
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-1064
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the qemu_agent.c source code file due to an incomplete fix for CVE-2018-5748 that affects the QEMU monitor. A local attacker can consume excessive amounts of memory resources and cause the service to crash.
MitigationUpdate the affected packages.
libvirt: 3.7.0 - 4.1.0
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-04/msg00011.html
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.
3) Security restrictions bypass
EUVDB-ID: #VU10793
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-6764
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows an adjacent attacker to bypass security restrictions on the target system.
The weakness exists in the util/virlog.c source code file due to improper determination of hostnames during LXC container startup. An adjacent attacker can bypass security restrictions and execute arbitrary commands.
Update the affected packages.
libvirt: 3.7.0 - 4.0.0
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-04/msg00011.html
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.
