6.2
MEDIUM CVSS 3.1
CVE-2022-23645
SWTPM In-Bounds Read/Crash Vulnerability
Description

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.

INFO

Published Date :

Feb. 18, 2022, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 6:49 a.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2022-23645 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
1 Fedoraproject fedora
1 Swtpm_project swtpm
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 LOW [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
Solution
Follow the instructions below to mitigate the CVE-2022-23645 vulnerability.
Update the RHEL swtpm package based on the guidance in RHSA-2022:8100.
Public PoC/Exploit Available at Github

CVE-2022-23645 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-23645 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-23645 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

test 反向辣鸡数据投放 CVE-2022-23305 工具 利用 教程 Exploit POC

cve-2020-

Updated: 7 months, 1 week ago
5 stars 3 fork 3 watcher
Born at : Jan. 21, 2022, 5:07 a.m. This repo has been linked 2650 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-23645 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-23645 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/stefanberger/swtpm/commit/9f740868fc36761de27df3935513bdebf8852d19
    Added Reference https://github.com/stefanberger/swtpm/releases/tag/v0.5.3
    Added Reference https://github.com/stefanberger/swtpm/releases/tag/v0.6.2
    Added Reference https://github.com/stefanberger/swtpm/releases/tag/v0.7.1
    Added Reference https://github.com/stefanberger/swtpm/security/advisories/GHSA-2qgm-8xf4-3hqw
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/ [No types assigned]
    Removed Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/
  • Initial Analysis by [email protected]

    Mar. 07, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/stefanberger/swtpm/commit/9f740868fc36761de27df3935513bdebf8852d19 No Types Assigned https://github.com/stefanberger/swtpm/commit/9f740868fc36761de27df3935513bdebf8852d19 Patch, Third Party Advisory
    Changed Reference Type https://github.com/stefanberger/swtpm/releases/tag/v0.5.3 No Types Assigned https://github.com/stefanberger/swtpm/releases/tag/v0.5.3 Release Notes, Third Party Advisory
    Changed Reference Type https://github.com/stefanberger/swtpm/releases/tag/v0.6.2 No Types Assigned https://github.com/stefanberger/swtpm/releases/tag/v0.6.2 Release Notes, Third Party Advisory
    Changed Reference Type https://github.com/stefanberger/swtpm/releases/tag/v0.7.1 No Types Assigned https://github.com/stefanberger/swtpm/releases/tag/v0.7.1 Release Notes, Third Party Advisory
    Changed Reference Type https://github.com/stefanberger/swtpm/security/advisories/GHSA-2qgm-8xf4-3hqw No Types Assigned https://github.com/stefanberger/swtpm/security/advisories/GHSA-2qgm-8xf4-3hqw Patch, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:swtpm_project:swtpm:*:*:*:*:*:*:*:* versions up to (excluding) 0.5.3 *cpe:2.3:a:swtpm_project:swtpm:*:*:*:*:*:*:*:* versions from (including) 0.6.0 up to (excluding) 0.6.2 *cpe:2.3:a:swtpm_project:swtpm:0.7.0:-:*:*:*:*:*:* *cpe:2.3:a:swtpm_project:swtpm:0.7.0:rc1:*:*:*:*:*:* *cpe:2.3:a:swtpm_project:swtpm:0.7.0:rc2:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 05, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.2
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 2.1
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.02 }} -0.02%

score

0.04406

percentile