Denial of service in Software TPM Emulator (SWTPM)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-23645 |
| CWE-ID | CWE-125 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
swtpm Universal components / Libraries / Libraries used by multiple products |
| Vendor | Stefan Berger |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Out-of-bounds read
EUVDB-ID: #VU60731
Risk: Medium
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-2022-23645
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when the byte array representing the state of the TPM is accessed. A remote attacker can send a specially crafted header, trigger out-of-bounds read error and cause a denial of service condition on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsswtpm: 0.4.2 - 0.7.0
External linkshttp://github.com/stefanberger/swtpm/security/advisories/GHSA-2qgm-8xf4-3hqw
http://github.com/stefanberger/swtpm/commit/9f740868fc36761de27df3935513bdebf8852d19
http://github.com/stefanberger/swtpm/releases/tag/v0.5.3
http://github.com/stefanberger/swtpm/releases/tag/v0.6.2
http://github.com/stefanberger/swtpm/releases/tag/v0.7.1
http://github.com/stefanberger/swtpm/releases/tag/v0.8.0
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.
