Red Hat Enterprise Linux 8 update for the virt:rhel and virt-devel:rhel modules
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2021-3507 CVE-2022-0897 CVE-2022-2211 CVE-2022-23645 |
| CWE-ID | CWE-122 CWE-667 CWE-119 CWE-125 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Red Hat CodeReady Linux Builder for IBM z Systems Operating systems & Components / Operating system Red Hat CodeReady Linux Builder for ARM 64 Operating systems & Components / Operating system Red Hat CodeReady Linux Builder for Power, little endian Operating systems & Components / Operating system Red Hat CodeReady Linux Builder for x86_64 Operating systems & Components / Operating system 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 |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Heap-based buffer overflow
EUVDB-ID: #VU64569
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2021-3507
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the fdctrl_transfer_handler() function in hw/block/fdc.c while processing DMA read
data transfers from the floppy drive to the guest system. A remote privileged user on the guest OS can trigger a heap-based buffer overflow and crash the QEMU process on the host OS.
Install updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
Red Hat Enterprise Linux for ARM 64: 8
Red Hat Enterprise Linux for Power, little endian: 8
Red Hat Enterprise Linux for IBM z Systems: 8
Red Hat Enterprise Linux for x86_64: 8.0
CPE2.3 External links
http://access.redhat.com/errata/RHSA-2022:7472
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
2) Improper locking
EUVDB-ID: #VU62739
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2022-0897
CWE-ID:
CWE-667 - Improper Locking
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service attack (DoS).
The vulnerability exists due to double-locking error within the nwfilterConnectNumOfNWFilters() function in nwfilter/nwfilter_driver.c in libvirt. An local user can abuse the libvirt API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
MitigationInstall updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
Red Hat Enterprise Linux for ARM 64: 8
Red Hat Enterprise Linux for Power, little endian: 8
Red Hat Enterprise Linux for IBM z Systems: 8
Red Hat Enterprise Linux for x86_64: 8.0
CPE2.3 External links
http://access.redhat.com/errata/RHSA-2022:7472
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
3) Buffer overflow
EUVDB-ID: #VU69292
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2022-2211
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the get_keys() function. A remote attacker can pass specially crafted data to the application, trigger memory corruption and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
Red Hat Enterprise Linux for ARM 64: 8
Red Hat Enterprise Linux for Power, little endian: 8
Red Hat Enterprise Linux for IBM z Systems: 8
Red Hat Enterprise Linux for x86_64: 8.0
CPE2.3 External links
http://access.redhat.com/errata/RHSA-2022:7472
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
4) Out-of-bounds read
EUVDB-ID: #VU60731
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2022-23645
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when the byte array representing the state of the TPM is accessed. A remote attacker can send a specially crafted header, trigger out-of-bounds read error and cause a denial of service condition on the system.
MitigationInstall updates from vendor's website.
Red Hat CodeReady Linux Builder for IBM z Systems: 8.0
Red Hat CodeReady Linux Builder for ARM 64: 8.0
Red Hat CodeReady Linux Builder for Power, little endian: 8.0
Red Hat CodeReady Linux Builder for x86_64: 8.0
Red Hat Enterprise Linux for ARM 64: 8
Red Hat Enterprise Linux for Power, little endian: 8
Red Hat Enterprise Linux for IBM z Systems: 8
Red Hat Enterprise Linux for x86_64: 8.0
CPE2.3 External links
http://access.redhat.com/errata/RHSA-2022:7472
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
