Vulnerability · Published Jun 3, 2021 · Assigned by redhat
CVE-2021-3569
Medium 5.5
In plain English
A medium-severity buffer overflow in libtpms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 82.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A stack corruption bug was found in libtpms in versions before 0.7.2 and before 0.8.0 while decrypting data using RSA. This flaw could result in a SIGBUS (bad memory access) and termination of swtpm. The highest threat from this vulnerability is to system availability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libtpms | 0.8.2-1 | DEBIAN-CVE-2021-3569 |
| Debian:13 | libtpms | 0.8.2-1 | DEBIAN-CVE-2021-3569 |
| Debian:14 | libtpms | 0.8.2-1 | DEBIAN-CVE-2021-3569 |
| Ubuntu:22.04:LTS | libtpms | 0.8.2-1ubuntu1 | UBUNTU-CVE-2021-3569 |
Affected products (as reported)
Weakness: CWE-120
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1964358 x_refsource_MISC