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Vulnerability Details : CVE-2022-23645

swtpm is a libtpms-based TPM emulator with socket, character device, and Linux CUSE interface. Versions prior to 0.5.3, 0.6.2, and 0.7.1 are vulnerable to out-of-bounds read. A specially crafted header of swtpm's state, where the blobheader's hdrsize indicator has an invalid value, may cause an out-of-bounds access when the byte array representing the state of the TPM is accessed. This will likely crash swtpm or prevent it from starting since the state cannot be understood. Users should upgrade to swtpm v0.5.3, v0.6.2, or v0.7.1 to receive a patch. There are currently no known workarounds.
Publish Date : 2022-02-18 Last Update Date : 2022-03-07
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- CVSS Scores & Vulnerability Types

CVSS Score
2.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 125

- Products Affected By CVE-2022-23645

# Product Type Vendor Product Version Update Edition Language
1 OS Fedoraproject Fedora 35 * * * Version Details Vulnerabilities
2 OS Redhat Enterprise Linux 8.0 * * * Version Details Vulnerabilities
3 Application Swtpm Project Swtpm * * * * Version Details Vulnerabilities
4 Application Swtpm Project Swtpm 0.7.0 RC1 * * Version Details Vulnerabilities
5 Application Swtpm Project Swtpm 0.7.0 RC2 * * Version Details Vulnerabilities
6 Application Swtpm Project Swtpm 0.7.0 - * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Fedoraproject Fedora 1
Redhat Enterprise Linux 1
Swtpm Project Swtpm 4

- References For CVE-2022-23645

https://github.com/stefanberger/swtpm/releases/tag/v0.7.1
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/
FEDORA FEDORA-2022-12443a525c
https://github.com/stefanberger/swtpm/releases/tag/v0.6.2
https://github.com/stefanberger/swtpm/releases/tag/v0.5.3
https://github.com/stefanberger/swtpm/security/advisories/GHSA-2qgm-8xf4-3hqw CONFIRM
https://github.com/stefanberger/swtpm/commit/9f740868fc36761de27df3935513bdebf8852d19

- Metasploit Modules Related To CVE-2022-23645

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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