Improper input validation in Dovecot
CVE-2020-25275
Dovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, leading to an application crash via a crafted email message with certain choices for ten thousand MIME parts.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.047 (91.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.047 · newest: 0.047 · change: 0.000
Affected products
- Dovecot
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 32
Weakness classification (CWE)
Public proof-of-concept exploits
References
- dovecot.org/security (Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/01/04/3 (Mailing List, Third Party Advisory)
- dovecot.org/pipermail/dovecot-news/2021-January/000451.html (Mailing List, Vendor Advisory)
- www.debian.org/security/2021/dsa-4825 (vendor-advisory, Third Party Advisory)
- seclists.org/fulldisclosure/2021/Jan/18 (mailing-list, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/160841/Dovecot-2.3.11.3-Denial-Of-Service.html (VDB Entry, Third Party Advisory)
- security.gentoo.org/glsa/202101-01 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-25275?
- CVE-2020-25275 is a high-severity vulnerability in Dovecot, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2021-01-04.
- How severe is CVE-2020-25275?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-25275 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.