Vulnerability in Dovecot
CVE-2019-10691
The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.028 (85.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Dovecot
- openSUSE Leap — versions 15.0
References
- www.openwall.com/lists/oss-security/2019/04/18/3 (mailing-list, Mailing List, Third Party Advisory)
- dovecot.org/list/dovecot-news/2019-April/000406.html (Vendor Advisory, mailing-list, Mailing List)
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/201908-29 (vendor-advisory)
Frequently asked questions
- What is CVE-2019-10691?
- CVE-2019-10691 is a high-severity vulnerability in Dovecot. CVSS score: 7.5/10. Published 2019-04-24.
- How severe is CVE-2019-10691?
- High severity. CVSS v3 base score is 7.5 out of 10.