Multiple vulnerabilities in Red Hat Virtualization



Published: 2022-07-21
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-27666
CVE-2022-28733
CWE-ID CWE-122
CWE-191
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe
redhat-virtualization-host-productimg (Red Hat package)
Operating systems & Components / Operating system package or component

redhat-release-virtualization-host (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Virtualization Host
Web applications / Remote management & hosting panels

Red Hat Virtualization
Server applications / Virtualization software

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU61672

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-27666

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c in Linux kernel. A local unprivileged user can pass specially crafted data to the system, trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host-productimg (Red Hat package): 4.5.0-2.el8

redhat-release-virtualization-host (Red Hat package): 4.5.0-5.el8ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:5678

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Integer underflow

EUVDB-ID: #VU64062

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-28733

CWE-ID: CWE-191 - Integer underflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer underflow when processing IP packets within the grub_net_recv_ip4_packets() function. A remote attacker can send specially crafted network traffic to the affected system, trigger an integer underflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host-productimg (Red Hat package): 4.5.0-2.el8

redhat-release-virtualization-host (Red Hat package): 4.5.0-5.el8ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:5678

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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