Amazon Linux AMI update for openssl



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-3996
CWE-ID CWE-667
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 one low risk vulnerability.

1) Improper locking

EUVDB-ID: #VU70142

Risk: Low

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

CVE-ID: CVE-2022-3996

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to double-locking error if an X.509 certificate contains a malformed policy constraint and policy processing is enabled. A remote attacker can under certain circumstances perform a denial of service attack against the web server.

Successful exploitation of the vulnerability requires that policy processing being enabled on the server.

Mitigation

Update the affected packages:

aarch64:
    openssl-debuginfo-3.0.5-1.amzn2023.0.7.aarch64
    openssl-libs-debuginfo-3.0.5-1.amzn2023.0.7.aarch64
    openssl-perl-3.0.5-1.amzn2023.0.7.aarch64
    openssl-libs-3.0.5-1.amzn2023.0.7.aarch64
    openssl-3.0.5-1.amzn2023.0.7.aarch64
    openssl-debugsource-3.0.5-1.amzn2023.0.7.aarch64
    openssl-devel-3.0.5-1.amzn2023.0.7.aarch64

src:
    openssl-3.0.5-1.amzn2023.0.7.src

x86_64:
    openssl-libs-debuginfo-3.0.5-1.amzn2023.0.7.x86_64
    openssl-debuginfo-3.0.5-1.amzn2023.0.7.x86_64
    openssl-perl-3.0.5-1.amzn2023.0.7.x86_64
    openssl-libs-3.0.5-1.amzn2023.0.7.x86_64
    openssl-3.0.5-1.amzn2023.0.7.x86_64
    openssl-debugsource-3.0.5-1.amzn2023.0.7.x86_64
    openssl-devel-3.0.5-1.amzn2023.0.7.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

openssl: All versions

CPE2.3 External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-095.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.



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