NULL pointer dereference in Dovecot
CVE-2019-19722
In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with a crafted email when push notifications are used, because of a NULL Pointer Dereference. The email must use a group address as either the sender or the recipient.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.025 (83.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Dovecot
- Fedoraproject Fedora — versions 30, 31
Weakness classification (CWE)
References
- dovecot.org/list/dovecot-news/2019-December/000428.html (Vendor Advisory)
- dovecot.org/security.html (Vendor Advisory)
- www.openwall.com/lists/oss-security/2019/12/13/3 (Mailing List, Third Party Advisory)
- dovecot.org/pipermail/dovecot-news/2019-December/000428.html (Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2019-19722?
- CVE-2019-19722 is a medium-severity vulnerability in Dovecot, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2019-12-13.
- How severe is CVE-2019-19722?
- Medium severity. CVSS v3 base score is 5.3 out of 10.