Critical severity · published Aug 29, 2019
CVE-2019-11500
In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings
9.8
CVSS
62.3%
EPSS
No
On KEV
Description
In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)62.3% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0 · source: NVD
DO
Dovecot · Dovecot
before 2.2.36.4; 2.3.0 before 2.3.7.2 · source: NVD
FE
Fedora · Fedoraproject
30 · source: NVD
PI
Pigeonhole · Dovecot
before 0.5.7.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11500
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-11500
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00024.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00026.html
Exploit
http://www.openwall.com/lists/oss-security/2019/08/28/3
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:2822
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:2836
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:2885
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