Multiple vulnerabilities in Multicluster Engine for Kubernetes 2.0

1) Inefficient Algorithmic Complexity

EUVDB-ID: #VU72750

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-25881

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

Exploit availability: No

Description

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

The vulnerability exists due to regular expression denial of service that occurs when the server reads the cache policy from the request using this library. A remote unauthenticated attacker can send malicious request header values to the server and perform a denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.0 - 2.0.7

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.2:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:2098

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.

2) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU71993

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-4304

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain sensitive information.

The vulnerability exists due to a timing based side channel exists in the OpenSSL RSA Decryption implementation. A remote attacker can perform a Bleichenbacher style attack and decrypt data sent over the network.

To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.0 - 2.0.7

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.2:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:2098

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.

3) Double Free

EUVDB-ID: #VU71996

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-4450

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the PEM_read_bio_ex() function. A remote attacker can pass specially crafted PEM file to the application, trigger a double free error and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.0 - 2.0.7

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.2:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:2098

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) Use-after-free

EUVDB-ID: #VU71995

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0215

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the BIO_new_NDEF function. A remote attacker can trigger a use-after-free error and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.0 - 2.0.7

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.2:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:2098

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) Type Confusion

EUVDB-ID: #VU71992

Risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-0286

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a type confusion error related to X.400 address processing inside an X.509 GeneralName. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and perform a denial of service (DoS) attack or read memory contents.

In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.0 - 2.0.7

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.2:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:2098

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) Inadequate Encryption Strength

EUVDB-ID: #VU72125

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0361

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error in the TLS RSA key exchange. A remote attacker can perform Bleichenbacher oracle attack and decrypt information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.0 - 2.0.7

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.2:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:2098

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.

7) Out-of-bounds write

EUVDB-ID: #VU72250

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0767

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing PKCS 12 Safe Bag attributes. A remote attacker can create a specially crafted PKCS 12 cert bundle, trick the victim into loading it, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.0 - 2.0.7

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.2:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:2098

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.

8) Allocation of Resources Without Limits or Throttling

EUVDB-ID: #VU72337

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-23916

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

Exploit availability: No

Description

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

The vulnerability exists due to incorrect implementation of the "chained" HTTP compression algorithms, where the number of links in the decompression chain was limited for each header instead of the entire request. A remote attacker can send a specially crafted compressed HTTP request with numerous headers and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.0 - 2.0.7

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.0.2:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:2098

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.