Vulnerability in Tpm2 Software Stack Project
CVE-2020-24455
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Tpm2 Software Stack Project
- Fedoraproject Fedora — versions 34
- Tpm2 Source — versions before 3.01, before 2.4.3
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3 (Third Party Advisory, Release Notes)
- github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1 (Third Party Advisory, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202107-10 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-24455?
- CVE-2020-24455 is a medium-severity vulnerability in Tpm2 Software Stack Project, classified under CWE-909. CVSS score: 6.7/10. Published 2021-02-26.
- How severe is CVE-2020-24455?
- Medium severity. CVSS v3 base score is 6.7 out of 10.