CVE-2019-7524
dovecot: Buffer overflow in indexer-worker process results in privilege escalation
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
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.
A vulnerability was discovered in the Dovecot email server. When reading FTS or POP3-UIDL headers from the Dovecot index, the input buffer size is not bounds-checked. An attacker with the ability to modify dovecot indexes, can take advantage of this flaw for privilege escalation or the execution of arbitrary code with the permissions of the dovecot user. Only installations using the FTS or pop3 migration plugins are affected.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-02-06 CVE Reserved
- 2019-03-28 CVE Published
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS 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 |
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| http://www.securityfocus.com/bid/107672 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/03/msg00038.html | Mailing List |
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| https://seclists.org/bugtraq/2019/Mar/59 | Issue Tracking |
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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
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| 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
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| 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
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| 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
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| 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
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| 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
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| 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
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| 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
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| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.0 Search vendor "Opensuse" for product "Leap" and version "15.0" | - |
Affected
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| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 42.3 Search vendor "Opensuse" for product "Leap" and version "42.3" | - |
Affected
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