Amazon Linux AMI update for openssl

Published: 2025-02-19

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2023-0464 CVE-2023-0465 CVE-2023-0466 CVE-2023-1255
CWE-ID	CWE-400 CWE-347 CWE-254 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Amazon Linux AMI Operating systems & Components / Operating system openssl Operating systems & Components / Operating system package or component
Vendor	Amazon Web Services

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU73960

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-2023-0464

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources when verifying X.509 certificate chains that include policy constraints. A remote attacker can create a specially crafted certificate to trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages:

aarch64:
    openssl-libs-debuginfo-3.0.8-1.amzn2023.0.2.aarch64
    openssl-debuginfo-3.0.8-1.amzn2023.0.2.aarch64
    openssl-perl-3.0.8-1.amzn2023.0.2.aarch64
    openssl-libs-3.0.8-1.amzn2023.0.2.aarch64
    openssl-3.0.8-1.amzn2023.0.2.aarch64
    openssl-debugsource-3.0.8-1.amzn2023.0.2.aarch64
    openssl-devel-3.0.8-1.amzn2023.0.2.aarch64

src:
    openssl-3.0.8-1.amzn2023.0.2.src

x86_64:
    openssl-libs-debuginfo-3.0.8-1.amzn2023.0.2.x86_64
    openssl-perl-3.0.8-1.amzn2023.0.2.x86_64
    openssl-debuginfo-3.0.8-1.amzn2023.0.2.x86_64
    openssl-libs-3.0.8-1.amzn2023.0.2.x86_64
    openssl-debugsource-3.0.8-1.amzn2023.0.2.x86_64
    openssl-3.0.8-1.amzn2023.0.2.x86_64
    openssl-devel-3.0.8-1.amzn2023.0.2.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

openssl: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-181.html

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) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU74148

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-0465

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error when validating certificate policies in leaf certificates. A remote attacker that controls a malicious CA server can issue a certificate that will be validated by the application.

Mitigation

Update the affected packages:

aarch64:
    openssl-libs-debuginfo-3.0.8-1.amzn2023.0.2.aarch64
    openssl-debuginfo-3.0.8-1.amzn2023.0.2.aarch64
    openssl-perl-3.0.8-1.amzn2023.0.2.aarch64
    openssl-libs-3.0.8-1.amzn2023.0.2.aarch64
    openssl-3.0.8-1.amzn2023.0.2.aarch64
    openssl-debugsource-3.0.8-1.amzn2023.0.2.aarch64
    openssl-devel-3.0.8-1.amzn2023.0.2.aarch64

src:
    openssl-3.0.8-1.amzn2023.0.2.src

x86_64:
    openssl-libs-debuginfo-3.0.8-1.amzn2023.0.2.x86_64
    openssl-perl-3.0.8-1.amzn2023.0.2.x86_64
    openssl-debuginfo-3.0.8-1.amzn2023.0.2.x86_64
    openssl-libs-3.0.8-1.amzn2023.0.2.x86_64
    openssl-debugsource-3.0.8-1.amzn2023.0.2.x86_64
    openssl-3.0.8-1.amzn2023.0.2.x86_64
    openssl-devel-3.0.8-1.amzn2023.0.2.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

openssl: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-181.html

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) Security features bypass

EUVDB-ID: #VU74149

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-0466

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error within the X509_VERIFY_PARAM_add0_policy() function, which does not perform the certificate policy check despite being implicitly enabled. A remote attacker can bypass expected security restrictions and perform MitM attack.

Mitigation

Update the affected packages:

aarch64:
    openssl-libs-debuginfo-3.0.8-1.amzn2023.0.2.aarch64
    openssl-debuginfo-3.0.8-1.amzn2023.0.2.aarch64
    openssl-perl-3.0.8-1.amzn2023.0.2.aarch64
    openssl-libs-3.0.8-1.amzn2023.0.2.aarch64
    openssl-3.0.8-1.amzn2023.0.2.aarch64
    openssl-debugsource-3.0.8-1.amzn2023.0.2.aarch64
    openssl-devel-3.0.8-1.amzn2023.0.2.aarch64

src:
    openssl-3.0.8-1.amzn2023.0.2.src

x86_64:
    openssl-libs-debuginfo-3.0.8-1.amzn2023.0.2.x86_64
    openssl-perl-3.0.8-1.amzn2023.0.2.x86_64
    openssl-debuginfo-3.0.8-1.amzn2023.0.2.x86_64
    openssl-libs-3.0.8-1.amzn2023.0.2.x86_64
    openssl-debugsource-3.0.8-1.amzn2023.0.2.x86_64
    openssl-3.0.8-1.amzn2023.0.2.x86_64
    openssl-devel-3.0.8-1.amzn2023.0.2.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

openssl: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-181.html

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) Out-of-bounds read

EUVDB-ID: #VU75388

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-1255

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the AES-XTS cipher decryption implementation for 64 bit ARM platform. An attacker with ability to control the size and location of the ciphertext buffer can trigger an out-of-bounds read and crash the application.

Mitigation

Update the affected packages:

aarch64:
    openssl-libs-debuginfo-3.0.8-1.amzn2023.0.2.aarch64
    openssl-debuginfo-3.0.8-1.amzn2023.0.2.aarch64
    openssl-perl-3.0.8-1.amzn2023.0.2.aarch64
    openssl-libs-3.0.8-1.amzn2023.0.2.aarch64
    openssl-3.0.8-1.amzn2023.0.2.aarch64
    openssl-debugsource-3.0.8-1.amzn2023.0.2.aarch64
    openssl-devel-3.0.8-1.amzn2023.0.2.aarch64

src:
    openssl-3.0.8-1.amzn2023.0.2.src

x86_64:
    openssl-libs-debuginfo-3.0.8-1.amzn2023.0.2.x86_64
    openssl-perl-3.0.8-1.amzn2023.0.2.x86_64
    openssl-debuginfo-3.0.8-1.amzn2023.0.2.x86_64
    openssl-libs-3.0.8-1.amzn2023.0.2.x86_64
    openssl-debugsource-3.0.8-1.amzn2023.0.2.x86_64
    openssl-3.0.8-1.amzn2023.0.2.x86_64
    openssl-devel-3.0.8-1.amzn2023.0.2.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

openssl: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-181.html

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.