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CVE-2020-10958

MEDIUMCVSS 5.3/10EPSS 6.12%

Last modified

CVE-2020-10958 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.. EPSS estimates a 6.12% chance of exploitation in the next 30 days.

Description

In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability
6.12%

92.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DovecotDovecot< 2.3.10.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-10958?
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
How severe is CVE-2020-10958?
CVE-2020-10958 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 6.12% probability of exploitation in the next 30 days.
How do I fix CVE-2020-10958?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10958?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST