Multiple vulnerabilities in Red Hat Enterprise Linux Advanced Virtualization
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2019-12155 CVE-2019-9755 CVE-2019-3886 |
| CWE-ID | CWE-476 CWE-122 CWE-264 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Red Hat Virtualization Server applications / Virtualization software |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) NULL pointer dereference
EUVDB-ID: #VU20499
Risk: Medium
CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2019-12155
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in "hw/display/qxl.c". A remote attacker can perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat Virtualization: 8
CPE2.3 External linkshttps://access.redhat.com/errata/RHBA-2019:3723
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) Heap-based buffer overflow
EUVDB-ID: #VU18324
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2019-9755
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the target system.
The vulnerability exists due to a boundary error when executing the NTFS-3G driver with an overly long relative mount point path. A local usre can create directory structure with specially crafted names, trigger heap-based buffer overflow and execute arbitrary code on the target system with elevated privileges.
Install updates from vendor's website.
Red Hat Virtualization: 8
CPE2.3 External linkshttps://access.redhat.com/errata/RHBA-2019:3723
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) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU18847
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2019-3886
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information or perform denial of service (DoS) attack.
The vulnerability exists due to the application allows readonly permissions to invoke the APIs depending on the guest agent. A remote non-authenticated attacker can gain access to sensitive information or perform denial of service attack.
MitigationInstall updates from vendor's website.
Red Hat Virtualization: 8
CPE2.3 External linkshttps://access.redhat.com/errata/RHBA-2019:3723
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.
