CVE-2021-3623
CVSS V2 Low 3.6
CVSS V3 High 8.2
Description
A flaw was found in libtpms. The flaw can be triggered by specially-crafted TPM 2 command packets containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is marshalled/written or unmarshalled/read. The highest threat from this vulnerability is to system availability.
Overview
- CVE ID
- CVE-2021-3623
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-02T23:15:08
- Last Modified Date
- 2022-11-29T16:57:27
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | 1 | OR | 0.6.5 | |
| cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | 1 | OR | 0.7.0 | 0.7.8 |
| cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:* | 1 | OR | 0.8.0 | 0.8.4 |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 3.6
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- HIGH
- Base Score
- 8.2
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 4.2
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1976806 | Issue Tracking Patch Third Party Advisory |
| https://github.com/stefanberger/libtpms/commit/2e6173c | Patch Third Party Advisory |
| https://github.com/stefanberger/libtpms/commit/2f30d62 | Patch Third Party Advisory |
| https://github.com/stefanberger/libtpms/commit/7981d9a | Patch Third Party Advisory |
| https://github.com/stefanberger/libtpms/pull/223 | Issue Tracking Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/ | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-3623 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3623 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:46:35 | Added to TrackCVE | |||
| 2022-12-06 11:11:01 | 2022-03-02T23:15Z | 2022-03-02T23:15:08 | CVE Published Date | updated |
| 2022-12-06 11:11:01 | 2022-11-29T16:57:27 | CVE Modified Date | updated | |
| 2022-12-06 11:11:01 | Analyzed | Vulnerability Status | updated | |
| 2022-12-06 11:11:07 | References | updated | ||
| 2022-12-06 11:11:07 | AV:N/AC:L/Au:N/C:P/I:N/A:P | AV:L/AC:L/Au:N/C:P/I:N/A:P | CVSS V2 vector_string | updated |
| 2022-12-06 11:11:07 | NETWORK | LOCAL | CVSS V2 access_vector | updated |
| 2022-12-06 11:11:07 | 6.4 | 3.6 | CVSS V2 baseScore | updated |
| 2022-12-06 11:11:07 | MEDIUM | LOW | CVSS V2 baseSeverity | updated |
| 2022-12-06 11:11:07 | 10 | 3.9 | CVSS V2 exploitabilityScore | updated |