Multiple vulnerabilities in Red Hat OpenShift Virtualization



Published: 2022-01-20
Risk High
Patch available YES
Number of vulnerabilities 7
CVE-ID CVE-2021-31525
CVE-2021-33198
CVE-2021-34558
CVE-2021-33195
CVE-2021-33197
CVE-2021-42574
CVE-2021-43527
CWE-ID CWE-674
CWE-295
CWE-20
CWE-122
Exploitation vector Network
Public exploit Public exploit code for vulnerability #3 is available.
Public exploit code for vulnerability #6 is available.
Vulnerable software
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OpenShift Virtualization
Server applications / Virtualization software

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 7 vulnerabilities.

1) Uncontrolled Recursion

EUVDB-ID: #VU54910

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-31525

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a DoS attack.

The vulnerability exists due to uncontrolled recursion when processing HTTP headers. A remote attacker can send a large header to ReadRequest or ReadResponse and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenShift Virtualization: 4.9.0 - 4.9.1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0191

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Resource management error

EUVDB-ID: #VU56024

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-33198

CWE-ID: -

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources within the application when handling a large exponent to the math/big.Rat SetString or UnmarshalText method.  A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenShift Virtualization: 4.9.0 - 4.9.1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0191

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Improper Certificate Validation

EUVDB-ID: #VU55665

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-34558

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: Yes

Description

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

The vulnerability exists due to improper certificate verification in crypto/tls package in Go when processing X.509 certificates. The application does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenShift Virtualization: 4.9.0 - 4.9.1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0191

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

4) Cross-site scripting

EUVDB-ID: #VU56022

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-33195

CWE-ID: -

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of data passed from DNS lookups. A remote attacker can send a specially crafted DNS reqponse and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenShift Virtualization: 4.9.0 - 4.9.1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0191

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

5) Missing Authorization

EUVDB-ID: #VU56023

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-33197

CWE-ID: -

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authorization process.

The vulnerability exists due to an error in some configurations of ReverseProxy (from net/http/httputil). A remote attacker can drop arbitrary headers and bypass authorization process. 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenShift Virtualization: 4.9.0 - 4.9.1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0191

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

6) Input validation error

EUVDB-ID: #VU57848

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-42574

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: Yes

Description

The vulnerability allows an attacker to bypass certain security checks.

The vulnerability exists in the Bidirectional Algorithm in the Unicode Specification. It permits the visual reordering of characters via control sequences, which can be used to craft source code that renders different logic than the logical ordering of tokens ingested by compilers and interpreters.

An attacker can leverage this behavior to encode source code for compilers accepting Unicode such that targeted vulnerabilities are introduced invisibly to human reviewers.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenShift Virtualization: 4.9.0 - 4.9.1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0191

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

7) Heap-based buffer overflow

EUVDB-ID: #VU58477

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-43527

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when handling DER-encoded DSA or RSA-PSS signatures. A remote attacker can send specially crafted signatures encoded within CMS, S/MIME, PKCS #7, or PKCS #12 to the application, 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

OpenShift Virtualization: 4.9.0 - 4.9.1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0191

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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