Amazon Linux AMI update for tpm2-tss



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-22745
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Amazon Linux AMI
Operating systems & Components / Operating system

tpm2-tss
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU71458

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-22745

CWE-ID: CWE-119 - Memory corruption

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 in "Tss2_RC_SetHandler" and "Tss2_RC_Decode". A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages:

aarch64:
    tpm2-tss-debuginfo-3.1.0-1.amzn2023.0.3.aarch64
    tpm2-tss-3.1.0-1.amzn2023.0.3.aarch64
    tpm2-tss-devel-3.1.0-1.amzn2023.0.3.aarch64
    tpm2-tss-debugsource-3.1.0-1.amzn2023.0.3.aarch64

src:
    tpm2-tss-3.1.0-1.amzn2023.0.3.src

x86_64:
    tpm2-tss-debuginfo-3.1.0-1.amzn2023.0.3.x86_64
    tpm2-tss-3.1.0-1.amzn2023.0.3.x86_64
    tpm2-tss-debugsource-3.1.0-1.amzn2023.0.3.x86_64
    tpm2-tss-devel-3.1.0-1.amzn2023.0.3.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

tpm2-tss: before 3.1.0-1

CPE2.3 External links

http://alas.aws.amazon.com/AL2023/ALAS-2023-110.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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