CVE-2019-19722: dovecot NULL Pointer Dereference
CVSS: 5.3v3.1MediumModified
AliasesALPINE-CVE-2019-19722UBUNTU-CVE-2019-19722
Published 13-12-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-19722 is a medium (CVSS 5.3) NULL Pointer Dereference vulnerability in dovecot. EPSS estimates a 2.48% chance of exploitation in the next 30 days, higher than 84.4% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (NVD)EPSS score
2.48%
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 2 · Related 2Timeline
- 13-12-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LSourcesAll 3 agree
- OSV · AlpineEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.48%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.48% on 21-09-2026
21-09-202621-10-2026
EPSS score2.48%
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< 2.3.9.2-r0
Dovecot1 product
- dovecot< 2.3.9.2
Fedoraproject1 product
- fedoraEOL30 | 31
Ubuntu1 product
- dovecot< 1:2.2.22-1ubuntu2.12 | < 1:2.2.33.2-1ubuntu4.5
4 vendors · 4 products