Vulnerability · Published Jun 11, 2021 · Assigned by TianoCore
CVE-2021-28211
Medium 6.7
In plain English
A medium-severity heap buffer overflow in EDK II from TianoCore. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.7Medium
Exploit odds (30 days)0.4%top 67.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A heap overflow in LzmaUefiDecompressGetInfo function in EDK II.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | edk2 | 2020.11-1 | DEBIAN-CVE-2021-28211 |
| Debian:13 | edk2 | 2020.11-1 | DEBIAN-CVE-2021-28211 |
| Debian:14 | edk2 | 2020.11-1 | DEBIAN-CVE-2021-28211 |
| Rocky Linux:8 | edk2 | 0:20200602gitca407c7246bf-4.el8_4.1 | RLSA-2021:2591 |
| Ubuntu:22.04:LTS | edk2 | 2022.02-3ubuntu0.22.04.3 | USN-7060-1 |
Affected products (as reported)
Weakness: CWE-122
References
- https://bugzilla.tianocore.org/show_bug.cgi?id=1816 x_refsource_MISC