CVE-2019-7524

dovecot: Buffer overflow in indexer-worker process results in privilege escalation

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Dovecot before 2.2.36.3 and 2.3.x before 2.3.5.1, a local attacker can cause a buffer overflow in the indexer-worker process, which can be used to elevate to root. This occurs because of missing checks in the fts and pop3-uidl components.

En Dovecot, en versiones anteriores a la 2.2.36.3 y en las 2.3.x anteriores a la 2.3.5.1, un atacante local puede provocar un desbordamiento de búfer en el proceso "indexer-worker", que se podría utilizar para elevar a root. Esto ocurre debido a la falta de comprobaciones en los componentes fts y pop3-uidl.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-02-06 CVE Reserved
2019-03-28 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-284: Improper Access Control

CAPEC

References (15)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2019/03/28/1	Mailing List
http://www.securityfocus.com/bid/107672	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00038.html	Mailing List
https://seclists.org/bugtraq/2019/Mar/59	Issue Tracking

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00060.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.html	2023-11-07
https://dovecot.org/list/dovecot-news/2019-March/000403.html	2023-11-07
https://dovecot.org/security.html	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS	2023-11-07
https://security.gentoo.org/glsa/201904-19	2023-11-07
https://usn.ubuntu.com/3928-1	2023-11-07
https://www.debian.org/security/2019/dsa-4418	2023-11-07
https://access.redhat.com/security/cve/CVE-2019-7524	2020-03-31
https://bugzilla.redhat.com/show_bug.cgi?id=1696152	2020-03-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Dovecot Search vendor "Dovecot"		Dovecot Search vendor "Dovecot" for product "Dovecot"				< 2.2.36.3 Search vendor "Dovecot" for product "Dovecot" and version " < 2.2.36.3"		-		Affected
Dovecot Search vendor "Dovecot"		Dovecot Search vendor "Dovecot" for product "Dovecot"				>= 2.3.0 < 2.3.5.1 Search vendor "Dovecot" for product "Dovecot" and version " >= 2.3.0 < 2.3.5.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.0 Search vendor "Opensuse" for product "Leap" and version "15.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				42.3 Search vendor "Opensuse" for product "Leap" and version "42.3"		-		Affected