Arch Linux update for libtpms



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-3623
CWE-ID CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Arch Linux
Operating systems & Components / Operating system

Vendor Arch Linux

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU54504

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-3623

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

Exploit availability: No

Description

The vulnerability allows a local user to crash the system.

The vulnerability exists due to a boundary condition. A local user can use specially-crafted TPM 2 command packets containing illegal values to trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation

Update the affected package libtpms to version 0.8.4-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-202107-9


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.



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