Multiple vulnerabilities in Red Hat Virtualization

Published: 2022-04-07 | Updated: 2024-03-30

Risk	High
Patch available	YES
Number of vulnerabilities	12
CVE-ID	CVE-2021-0920 CVE-2022-0778 CVE-2022-25315 CVE-2022-25235 CVE-2022-25236 CVE-2021-4083 CVE-2021-45417 CVE-2022-24407 CVE-2022-22942 CVE-2021-4028 CVE-2021-4155 CVE-2022-0330
CWE-ID	CWE-416 CWE-835 CWE-190 CWE-94 CWE-20 CWE-122 CWE-89 CWE-264 CWE-119
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild. Public exploit code for vulnerability #2 is available. Vulnerability #9 is being exploited in the wild.
Vulnerable software Subscribe	redhat-virtualization-host (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 redhat-virtualization-host-productimg (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 12 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU59811

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-0920

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the unix_scm_to_skb() function of af_unix.c in Linux kernel. A local user can run a specially crafted program to trigger a race condition and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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?

Yes. This vulnerability is being exploited in the wild.

2) Infinite loop

EUVDB-ID: #VU61391

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-0778

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within the BN_mod_sqrt() function when processing an ASN.1 certificate that contains elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. A remote attacker can supply a specially crafted certificate to the TLS server or client, consume all available system resources and cause denial of service conditions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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. However, proof of concept for this vulnerability is available.

3) Integer overflow

EUVDB-ID: #VU60739

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-25315

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow in storeRawNames function. A remote attacker can pass specially crafted data to the application, trigger integer overflow 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 (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.

4) Code Injection

EUVDB-ID: #VU60736

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-25235

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to the affected application lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context. A remote attacker can send a specially crafted request 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 (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.

5) Input validation error

EUVDB-ID: #VU60733

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-25236

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper protection against insertion of namesep characters into namespace URIs in xmlparse.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.

6) Use-after-free

EUVDB-ID: #VU61246

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4083

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the Linux kernel's garbage collection for Unix domain socket file handlers. A local user can call close() and fget() simultaneously and can potentially trigger a race condition, which in turn leads to a use-after-free error and allows privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.

7) Heap-based buffer overflow

EUVDB-ID: #VU59952

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-45417

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

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in src/base64.h. A local user can use specially crafted file metadata, trigger heap-based buffer overflow 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 (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.

8) SQL injection

EUVDB-ID: #VU60842

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24407

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of password in the SQL plugin shipped with Cyrus SASL. A remote non-authenticated attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.

9) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU61217

Risk: Low

CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-22942

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

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

The vulnerability exists due to an error in the vmwgfx driver in Linux kernel. A local unprivileged user can gain access to files opened by other processes on the system through a dangling 'file' pointer.

Exploiting this vulnerability requires an attacker to have access to either /dev/dri/card0 or /dev/dri/rendererD128 and be able to issue an ioctl() on the resulting file descriptor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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?

Yes. This vulnerability is being exploited in the wild.

10) Use-after-free

EUVDB-ID: #VU60797

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4028

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in the RDMA listen() function in Linux kernel. A local user can run a specially crafted program to trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.

11) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU59812

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4155

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to the OS kernel does not impose correctly security restrictions. A local user can gain access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.

12) Buffer overflow

EUVDB-ID: #VU60988

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0330

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a random memory access flaw caused by a missing TLB flush in Linux kernel GPU i915 kernel driver functionality. A local user can execute arbitrary code on the system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

redhat-virtualization-host (Red Hat package): 4.3.11-20200922.0.el7_9 - 4.3.21-20220126.0.el7_9

redhat-release-virtualization-host (Red Hat package): 4.3.4-1.el7ev - 4.3.21-1.el7ev

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host-productimg (Red Hat package): before 4.3.22-1.el7

External links

http://access.redhat.com/errata/RHSA-2022:1263

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.