CVE-2019-11494: dovecot NULL Pointer Dereference
CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2019-11494UBUNTU-CVE-2019-11494DEBIAN-CVE-2019-11494
Published 08-05-2019Last modified 04-08-2024
Vulnerability summary
CVE-2019-11494 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in dovecot. EPSS estimates a 2.43% chance of exploitation in the next 30 days, higher than 84.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (CVE.org)EPSS score
2.43%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 08-05-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login service crashes when the client disconnects prematurely during the AUTH command.
CVSS metrics
8 scores · 5 sources · 3 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
High 7.5Preferred score · CVE.org (CNA)
CVSS:3.0/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:NSourcesAll 3 agree
- NVDNIST7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.43%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.43% on 21-09-2026
21-09-202621-10-2026
EPSS score2.43%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- dovecot≥ 2.3.3, < 2.3.6-r0
Debian1 product
- dovecot< 1:2.3.4.1-5
Dovecot1 product
- dovecot≥ 2.3.3, ≤ 2.3.5.2
Fedoraproject1 product
- fedoraEOL29 | 30
Opensuse1 product
- leapEOL15.0 | 15.1
Ubuntu1 product
- dovecot< 1:2.2.22-1ubuntu2.10 | < 1:2.2.33.2-1ubuntu4.3
6 vendors · 6 products
References
11 links- lists.opensuse.org/opensuse-security-announce/2019-10/msg00026.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00024.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
