exim4: Exim 4 before 4.94.2 allows Heap-based Buffer Overflow because it mishandles "-F '.('" on the command line, and thus...
CVE-2020-28013 is fixed in 6 products on 1 platform, first by exim4 4.90.1-1ubuntu1.8, released May 4, 2021. It is not reported as exploited. Patch Radar priority: Routine.
Exim 4 before 4.94.2 allows Heap-based Buffer Overflow because it mishandles "-F '.('" on the command line, and thus may allow privilege escalation from any user to root. This occurs because of the interpretation of negative sizes in strncpy.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| exim4 · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.8 | exim4 4.90.1-1ubuntu1.8 | May 4, 2021 |
| exim4 · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.5 | exim4 4.93-13ubuntu1.5 | May 4, 2021 |
| exim4-base · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.8 | exim4-base 4.90.1-1ubuntu1.8 | May 4, 2021 |
| exim4-base · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.5 | exim4-base 4.93-13ubuntu1.5 | May 4, 2021 |
| exim4-config · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.8 | exim4-config 4.90.1-1ubuntu1.8 | May 4, 2021 |
| exim4-config · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.5 | exim4-config 4.93-13ubuntu1.5 | May 4, 2021 |
| exim4-daemon-heavy · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.8 | exim4-daemon-heavy 4.90.1-1ubuntu1.8 | May 4, 2021 |
| exim4-daemon-heavy · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.5 | exim4-daemon-heavy 4.93-13ubuntu1.5 | May 4, 2021 |
| exim4-daemon-light · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.8 | exim4-daemon-light 4.90.1-1ubuntu1.8 | May 4, 2021 |
| exim4-daemon-light · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.5 | exim4-daemon-light 4.93-13ubuntu1.5 | May 4, 2021 |
| eximon4 · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.8 | eximon4 4.90.1-1ubuntu1.8 | May 4, 2021 |
| eximon4 · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.5 | eximon4 4.93-13ubuntu1.5 | May 4, 2021 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.