Vulnerability · Published May 6, 2021 · Assigned by mitre
CVE-2020-28008
High 7.8
In plain English
A high-severity security flaw in the exim package (Alpine). 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 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.4%top 64.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the spool directory (owned by a non-root user), an attacker can write to a /var/spool/exim4/input spool header file, in which a crafted recipient address can indirectly lead to command execution.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28008 |
| Alpine:v3.21 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28008 |
| Alpine:v3.22 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28008 |
| Alpine:v3.23 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28008 |
| Alpine:v3.24 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28008 |
| Debian:12 | exim4 | 4.94.2-1 | DEBIAN-CVE-2020-28008 |
| Debian:13 | exim4 | 4.94.2-1 | DEBIAN-CVE-2020-28008 |
| Debian:14 | exim4 | 4.94.2-1 | DEBIAN-CVE-2020-28008 |