Denial of service in libtpms



Published: 2021-07-01
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-3569
CWE-ID CWE-121
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		libtpms
Universal components / Libraries / Libraries used by multiple products

Vendor Stefan Berger

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Stack-based buffer overflow

EUVDB-ID: #VU54503

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3569

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in libtpms while decrypting data using RSA. A local user can trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libtpms: 0.5.2 - 0.7.1

External links

http://bugzilla.redhat.com/show_bug.cgi?id=1964358


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.



###SIDEBAR###