CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
14.2%
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.
Vendor | Product | Version | CPE |
---|---|---|---|
swtpm_project | swtpm | * | cpe:2.3:a:swtpm_project:swtpm:*:*:*:*:*:*:*:* |
swtpm_project | swtpm | 0.7.0 | cpe:2.3:a:swtpm_project:swtpm:0.7.0:-:*:*:*:*:*:* |
swtpm_project | swtpm | 0.7.0 | cpe:2.3:a:swtpm_project:swtpm:0.7.0:rc1:*:*:*:*:*:* |
swtpm_project | swtpm | 0.7.0 | cpe:2.3:a:swtpm_project:swtpm:0.7.0:rc2:*:*:*:*:*:* |
redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
github.com/stefanberger/swtpm/commit/9f740868fc36761de27df3935513bdebf8852d19
github.com/stefanberger/swtpm/releases/tag/v0.5.3
github.com/stefanberger/swtpm/releases/tag/v0.6.2
github.com/stefanberger/swtpm/releases/tag/v0.7.1
github.com/stefanberger/swtpm/security/advisories/GHSA-2qgm-8xf4-3hqw
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
14.2%