Ubuntu update for libtpms

Published: 2023-03-07

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-1017 CVE-2023-1018
CWE-ID	CWE-787 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Ubuntu Operating systems & Components / Operating system libtpms0 (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU72706

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-1017

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the CryptParameterDecryption routine. A remote attacker can trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package libtpms to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 22.10

libtpms0 (Ubuntu package): before 0.9.3-0ubuntu1.22.04.1

CPE2.3

External links

https://ubuntu.com/security/notices/USN-5933-1

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.

2) Out-of-bounds read

EUVDB-ID: #VU72707

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-1018

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