CVE-2020-28024 Detail
Current Description
Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF.
Analysis Description
Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF.
Severity
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NIST |
Change History
1 change records found show changes
Initial Analysis 5/10/2021 12:17:47 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CPE Configuration |
OR
*cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* versions from (including) 4.00 up to (excluding) 4.94.2
|
|
| Added | CVSS V2 |
NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) |
|
| Added | CVSS V3.1 |
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
|
| Added | CWE |
NIST CWE-119 |
|
| Changed | Reference Type |
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28024-UNGET.txt No Types Assigned |
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28024-UNGET.txt Third Party Advisory |
Quick Info
CVE Dictionary Entry:
CVE-2020-28024
NVD Published Date:
05/06/2021
NVD Last Modified:
05/10/2021
Source:
MITRE