Vulnerability · Published May 6, 2021 · Assigned by mitre
CVE-2020-28012
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 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.4%top 66.0% 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 Exposure of File Descriptor to Unintended Control Sphere because rda_interpret uses a privileged pipe that lacks a close-on-exec flag.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28012 |
| Alpine:v3.21 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28012 |
| Alpine:v3.22 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28012 |
| Alpine:v3.23 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28012 |
| Alpine:v3.24 | exim | 4.94.2-r0 | ALPINE-CVE-2020-28012 |
| Debian:12 | exim4 | 4.94.2-1 | DEBIAN-CVE-2020-28012 |
| Debian:13 | exim4 | 4.94.2-1 | DEBIAN-CVE-2020-28012 |
| Debian:14 | exim4 | 4.94.2-1 | DEBIAN-CVE-2020-28012 |