Vulnerability CVE-2020-28026: Information
Description
Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN). Certain uses of ORCPT= can place a newline into a spool header file, and indirectly allow unauthenticated remote attackers to execute arbitrary commands as root.
Severity: CRITICAL (9.8) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| exim | sisyphus | 4.94.2-alt1 | 4.97-alt1 | ALT-PU-2021-1764-1 | 271258 | Fixed |
| exim | p10 | 4.94.2-alt1 | 4.96-alt1 | ALT-PU-2021-1764-1 | 271258 | Fixed |
| exim | c10f1 | 4.94.2-alt1 | 4.96-alt1 | ALT-PU-2021-1764-1 | 271258 | Fixed |
| exim | c9f2 | 4.94.2-alt2 | 4.96-alt1 | ALT-PU-2022-2269-1 | 301507 | Fixed |
| exim | p11 | 4.94.2-alt1 | 4.97-alt1 | ALT-PU-2021-1764-1 | 271258 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28026-FGETS.txt |
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