CVE-2020-10958 — Vulnetix

CVE-2020-10958 PUBLISHED

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 1.50% · 81.5th percentile

Risk Scores

EPSS Score

1.50%

81.5th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:20.04:LTS	dovecot	0, 1:2.3.7.2-1ubuntu1, 1:2.3.7.2-1ubuntu2

Exploit Intelligence

http://seclists.org/fulldisclosure/2020/May/37 (nist-nvd)
Open-Xchange Dovecot 2.3.10 Null Pointer Dereference / Denial Of Service Vulnerabilities (0day-today)
Open-Xchange Dovecot 2.3.10 Null Pointer Dereference / Denial Of Service Vulnerabilities (0day-today)

Timeline

May 18, 2020 PoC Published
May 18, 2020 CVE Published
Apr 14, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Apr 1, 2022 EPSS Score
Mar 7, 2023 EPSS Score
Mar 17, 2025 EPSS Score
Mar 19, 2025 EPSS Score
Mar 29, 2025 EPSS Score
Mar 30, 2025 EPSS Score
Apr 6, 2025 EPSS Score
Apr 7, 2025 EPSS Score

References

https://ubuntu.com/security/CVE-2020-10958 third-party-advisory
https://ubuntu.com/security/notices/USN-4361-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2020-10958 third-party-advisory

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