CVE-2019-11494 — NULL Pointer Dereference in Dovecot

CWE-476 — NULL Pointer Dereference10 documents7 sources
Severity
7.5HIGHNVD
OSV6.7
EPSS
1.5%
top 18.63%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
DovecotLinux KernelDebian Dovecot+2 more
Timeline
PublishedMay 8
Latest updateMay 24

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages5 packages

▶debiandebian/dovecot< dovecot 1:2.3.4.1-5 (bookworm)
▶Debiandovecot/dovecot< 1:2.3.4.1-5+3
▶NVDdovecot/dovecot2.3.3 — 2.3.5.2
▶Ubuntulinux/linux_kernel< 4.4.0-179.209
▶NVDopensuse/leap15.0, 15.1+1

Also affects: Fedora 29, 30

🔴Vulnerability Details

4
GHSA
GHSA-gcm9-2h5w-j7x9: In the IMAP Server in Dovecot 2↗2022-05-24
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OSV
linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities↗2020-05-19
▶
OSV
linux-gke-5.0, linux-oem-osp1 vulnerabilities↗2020-05-19
▶
OSV
CVE-2019-11494: In the IMAP Server in Dovecot 2↗2019-05-08
▶

📋Vendor Advisories

3
Ubuntu
Dovecot vulnerabilities↗2019-04-30
▶
Red Hat
dovecot: premature disconnection from client during AUTH command leads to crash and possible DoS↗2019-04-30
▶
Debian
CVE-2019-11494: dovecot - In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login servic...↗2019
▶

💬Community

2
Bugzilla
CVE-2019-11494 dovecot: premature disconnection from client during AUTH command leads to crash and possible DoS↗2019-05-13
▶
Bugzilla
CVE-2019-11494 dovecot: premature disconnection from client during AUTH command leads to crash and possible DoS [fedora-all]↗2019-05-13
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