Vulnerability · Published Feb 26, 2021 · Assigned by intel
CVE-2020-24455
Medium 6.7
In plain English
A medium-severity security flaw in TPM2 source. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.7Medium
Exploit odds (30 days)0.6%top 51.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | tpm2-tss | 3.0.1-1 | DEBIAN-CVE-2020-24455 |
| Debian:13 | tpm2-tss | 3.0.1-1 | DEBIAN-CVE-2020-24455 |
| Debian:14 | tpm2-tss | 3.0.1-1 | DEBIAN-CVE-2020-24455 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | TPM2 source | before 3.01, before 2.4.3 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1902167 x_refsource_CONFIRM
- https://github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3 x_refsource_CONFIRM
- https://github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1 x_refsource_CONFIRM
- FEDORA-2021-fa78f3ca9f vendor-advisory, x_refsource_FEDORA
- GLSA-202107-10 vendor-advisory, x_refsource_GENTOO