dovecot: null pointer dereference in push notification driver
Published Dec 13, 2019
5.3
MEDIUMCVSS 3.1
EPSS 2.48%
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.
Affected products
No data.
Configuration 2
- 30
- 31
No data.
Red Hat Enterprise Linux 5
dovecot
Not affected
Red Hat Enterprise Linux 6
dovecot
Not affected
Red Hat Enterprise Linux 7
dovecot
Not affected
Red Hat Enterprise Linux 8
dovecot
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | dovecot | Not affected | n/a |
| Red Hat Enterprise Linux 6 | dovecot | Not affected | n/a |
| Red Hat Enterprise Linux 7 | dovecot | Not affected | n/a |
| Red Hat Enterprise Linux 8 | dovecot | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The vulnerable functionality is not present in the versions of dovecot package in Red Hat Products therefore they are not affected by this flaw.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2021-2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 2.48% (0.02476) | 84.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.48% (0.02476) | 82.42th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.55% (0.00550) | 77.72th | v3 (v2023.03.01) |
| Apr 7, 2024 | 0.55% (0.00550) | 77.13th | v3 (v2023.03.01) |
| Feb 29, 2024 | 0.56% (0.00558) | 77.06th | v3 (v2023.03.01) |
| Nov 19, 2023 | 0.56% (0.00558) | 75.05th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.49% (0.00488) | 73.30th | v3 (v2023.03.01) |
| Nov 3, 2023 | 0.48% (0.00480) | 73.22th | v3 (v2023.03.01) |
| Oct 17, 2023 | 0.50% (0.00500) | 73.64th | v3 (v2023.03.01) |
| Oct 2, 2023 | 0.71% (0.00709) | 78.12th | v3 (v2023.03.01) |
| May 8, 2023 | 0.59% (0.00594) | 75.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.50% (0.00499) | 72.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.93% (0.08934) | 82.99th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.21% (0.06208) | 81.93th | v1 |
| Jan 6, 2022 | 6.21% (0.06208) | 81.75th | v1 |
| Sep 1, 2021 | 1.45% (0.01454) | 71.88th | v1 |
| Apr 14, 2021 | 1.45% (0.01454) | 0.00th | v1 |
References (10)
- http://www.openwall.com/lists/oss-security/2019/12/13/3 x_refsource_CONFIRMMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-19722 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1782785 Issue Tracking
- https://dovecot.org/list/dovecot-news/2019-December/000428.html x_refsource_CONFIRMVendor Advisory
- https://dovecot.org/pipermail/dovecot-news/2019-December/000428.html x_refsource_CONFIRMVendor Advisory
- https://dovecot.org/security.html x_refsource_CONFIRMVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OZCJ3RBA4WIYGN7SOV4TW2AIHXPZATK/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6PPB7PG5BM3MC5ZF2KHQ3UR7CZIO42BB/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2019-19722
- https://www.cve.org/CVERecord?id=CVE-2019-19722
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2019/12/13/3 | x_refsource_CONFIRMMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2019-19722 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1782785 | Issue Tracking | |
| https://dovecot.org/list/dovecot-news/2019-December/000428.html | x_refsource_CONFIRMVendor Advisory | |
| https://dovecot.org/pipermail/dovecot-news/2019-December/000428.html | x_refsource_CONFIRMVendor Advisory | |
| https://dovecot.org/security.html | x_refsource_CONFIRMVendor Advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OZCJ3RBA4WIYGN7SOV4TW2AIHXPZATK/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6PPB7PG5BM3MC5ZF2KHQ3UR7CZIO42BB/ | vendor-advisoryx_refsource_FEDORA | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-19722 | ||
| https://www.cve.org/CVERecord?id=CVE-2019-19722 |
Change history (0)
No recorded changes yet.