Amazon Linux AMI update for nss



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-5388
CWE-ID CWE-385
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

nss
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Covert timing channel

EUVDB-ID: #VU85267

Risk: Medium

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

CVE-ID: CVE-2023-5388

CWE-ID: CWE-385 - Covert Timing Channel

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to insufficient fix for #VU84108 (CVE-2023-4421). A remote attacker can perform Marvin attack and gain access to sensitive information.

Mitigation

Update the affected packages:

aarch64:
    nss-debuginfo-3.90.0-3.amzn2023.0.4.aarch64
    nss-util-devel-3.90.0-3.amzn2023.0.4.aarch64
    nss-sysinit-debuginfo-3.90.0-3.amzn2023.0.4.aarch64
    nss-util-debuginfo-3.90.0-3.amzn2023.0.4.aarch64
    nss-sysinit-3.90.0-3.amzn2023.0.4.aarch64
    nss-softokn-freebl-debuginfo-3.90.0-3.amzn2023.0.4.aarch64
    nss-softokn-debuginfo-3.90.0-3.amzn2023.0.4.aarch64
    nss-tools-debuginfo-3.90.0-3.amzn2023.0.4.aarch64
    nspr-devel-4.35.0-5.amzn2023.0.4.aarch64
    nss-softokn-devel-3.90.0-3.amzn2023.0.4.aarch64
    nss-softokn-freebl-devel-3.90.0-3.amzn2023.0.4.aarch64
    nspr-debuginfo-4.35.0-5.amzn2023.0.4.aarch64
    nss-softokn-3.90.0-3.amzn2023.0.4.aarch64
    nss-devel-3.90.0-3.amzn2023.0.4.aarch64
    nss-softokn-freebl-3.90.0-3.amzn2023.0.4.aarch64
    nspr-4.35.0-5.amzn2023.0.4.aarch64
    nss-pkcs11-devel-3.90.0-3.amzn2023.0.4.aarch64
    nss-util-3.90.0-3.amzn2023.0.4.aarch64
    nss-tools-3.90.0-3.amzn2023.0.4.aarch64
    nss-3.90.0-3.amzn2023.0.4.aarch64
    nss-debugsource-3.90.0-3.amzn2023.0.4.aarch64

src:
    nss-3.90.0-3.amzn2023.0.4.src

x86_64:
    nss-softokn-devel-3.90.0-3.amzn2023.0.4.x86_64
    nspr-devel-4.35.0-5.amzn2023.0.4.x86_64
    nss-softokn-debuginfo-3.90.0-3.amzn2023.0.4.x86_64
    nss-sysinit-3.90.0-3.amzn2023.0.4.x86_64
    nss-devel-3.90.0-3.amzn2023.0.4.x86_64
    nss-debuginfo-3.90.0-3.amzn2023.0.4.x86_64
    nss-util-3.90.0-3.amzn2023.0.4.x86_64
    nspr-debuginfo-4.35.0-5.amzn2023.0.4.x86_64
    nss-util-debuginfo-3.90.0-3.amzn2023.0.4.x86_64
    nss-debugsource-3.90.0-3.amzn2023.0.4.x86_64
    nss-pkcs11-devel-3.90.0-3.amzn2023.0.4.x86_64
    nss-tools-debuginfo-3.90.0-3.amzn2023.0.4.x86_64
    nss-sysinit-debuginfo-3.90.0-3.amzn2023.0.4.x86_64
    nss-tools-3.90.0-3.amzn2023.0.4.x86_64
    nspr-4.35.0-5.amzn2023.0.4.x86_64
    nss-softokn-freebl-devel-3.90.0-3.amzn2023.0.4.x86_64
    nss-3.90.0-3.amzn2023.0.4.x86_64
    nss-softokn-freebl-3.90.0-3.amzn2023.0.4.x86_64
    nss-softokn-freebl-debuginfo-3.90.0-3.amzn2023.0.4.x86_64
    nss-util-devel-3.90.0-3.amzn2023.0.4.x86_64
    nss-softokn-3.90.0-3.amzn2023.0.4.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

nss: before 3.90.0-3

CPE2.3 External links

https://alas.aws.amazon.com/AL2023/ALAS-2024-492.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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