Vulnerability Details : CVE-2021-28211
Potential exploit
A heap overflow in LzmaUefiDecompressGetInfo function in EDK II.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-28211
- cpe:2.3:a:tianocore:edk2:202008:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-28211
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-28211
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
6.7
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.8
|
5.9
|
NIST |
CWE ids for CVE-2021-28211
-
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: infosec@edk2.groups.io (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-28211
-
https://bugzilla.tianocore.org/show_bug.cgi?id=1816
1816 – (CVE-2021-28211) Possible heap corruption with LzmaUefiDecompressGetInfoExploit;Issue Tracking;Patch;Vendor Advisory
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