Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2022-3165 CVE-2022-4172 |
CWE-ID | CWE-191 CWE-190 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
Red Hat Enterprise Linux for ARM 64 Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems Operating systems & Components / Operating system Red Hat Enterprise Linux for x86_64 Operating systems & Components / Operating system qemu-kvm (Red Hat package) Operating systems & Components / Operating system package or component |
Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU72307
Risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-3165
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow in the QEMU VNC server while processing ClientCutText messages in the extended format. A remote client can send a specially crafted payload message to the VNC server and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Red Hat Enterprise Linux for ARM 64: 9
Red Hat Enterprise Linux for Power, little endian: 9
Red Hat Enterprise Linux for IBM z Systems: 9
Red Hat Enterprise Linux for x86_64: 9
qemu-kvm (Red Hat package): before 7.2.0-14.el9_2
CPE2.3https://access.redhat.com/errata/RHSA-2023:2162
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU72299
Risk: Medium
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:Green]
CVE-ID: CVE-2022-4172
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a malicious guest to perform a denial of service (DoS) attack.
The vulnerability exists due to integer overflow within the read_erst_record() and write_erst_record() functions in the ACPI Error Record Serialization Table (ERST) device of QEMU. A malicious guest can overrun the host buffer allocated for the ERST memory device and crash the QEMU process on the host.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux for ARM 64: 9
Red Hat Enterprise Linux for Power, little endian: 9
Red Hat Enterprise Linux for IBM z Systems: 9
Red Hat Enterprise Linux for x86_64: 9
qemu-kvm (Red Hat package): before 7.2.0-14.el9_2
CPE2.3https://access.redhat.com/errata/RHSA-2023:2162
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.