CVE-2020-28015

exim4: Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters

CVE-2020-28015 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.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0038
31st percentile

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. Local users can alter the behavior of root processes because a recipient address can have a newline character.

Where it's fixed

ProductFixed inFixReleased
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

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