CVE-2020-24455
Published: February 26, 2021Last modified: November 8, 2023
Description
Missing initialization of a variable in the TPM2 source may allow a privileged user to potentially enable an escalation of privilege via local access. This affects tpm2-tss before 3.0.1 and before 2.4.3.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.7 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | HIGH |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | tpm2-tss | Not affected (3.2.0-r0) |
| Stream | tpm2-tss | Not affected (3.2.0-r0) |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1902167
- https://github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3
- https://github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KPOENCMJU4DMT3BDNUBRK25B3DJ47UO/
- https://security.gentoo.org/glsa/202107-10