Search criteria
15 vulnerabilities found for opensmtpd by opensmtpd
FKIE_CVE-2023-29323
Vulnerability from fkie_nvd - Published: 2023-04-04 23:15 - Updated: 2025-11-04 19:15
Severity ?
Summary
ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and OpenSMTPD Portable before 7.0.0-portable commit f748277, can abort upon a connection from a local, scoped IPv6 address.
References
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FKIE_CVE-2020-35679
Vulnerability from fkie_nvd - Published: 2020-12-24 16:15 - Updated: 2024-11-21 05:27
Severity ?
Summary
smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| opensmtpd | opensmtpd | * | |
| opensmtpd | opensmtpd | 6.8.0 | |
| opensmtpd | opensmtpd | 6.8.0 | |
| fedoraproject | fedora | 32 | |
| fedoraproject | fedora | 33 |
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FKIE_CVE-2020-35680
Vulnerability from fkie_nvd - Published: 2020-12-24 16:15 - Updated: 2024-11-21 05:27
Severity ?
Summary
smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between the SMTP engine and the filters layer.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| opensmtpd | opensmtpd | * | |
| opensmtpd | opensmtpd | 6.8.0 | |
| opensmtpd | opensmtpd | 6.8.0 | |
| fedoraproject | fedora | 32 | |
| fedoraproject | fedora | 33 |
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FKIE_CVE-2020-8794
Vulnerability from fkie_nvd - Published: 2020-02-25 17:15 - Updated: 2024-11-21 05:39
Severity ?
Summary
OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| opensmtpd | opensmtpd | * | |
| canonical | ubuntu_linux | 18.04 | |
| canonical | ubuntu_linux | 19.10 | |
| fedoraproject | fedora | 31 | |
| fedoraproject | fedora | 32 | |
| debian | debian_linux | 9.0 | |
| debian | debian_linux | 10.0 |
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FKIE_CVE-2020-8793
Vulnerability from fkie_nvd - Published: 2020-02-25 17:15 - Updated: 2024-11-21 05:39
Severity ?
Summary
OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| opensmtpd | opensmtpd | * | |
| fedoraproject | fedora | 32 | |
| canonical | ubuntu_linux | 18.04 | |
| canonical | ubuntu_linux | 19.10 |
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CVE-2023-29323 (GCVE-0-2023-29323)
Vulnerability from cvelistv5 – Published: 2023-04-04 00:00 – Updated: 2025-11-04 18:14
VLAI?
Summary
ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and OpenSMTPD Portable before 7.0.0-portable commit f748277, can abort upon a connection from a local, scoped IPv6 address.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2020-35679 (GCVE-0-2020-35679)
Vulnerability from cvelistv5 – Published: 2020-12-24 15:53 – Updated: 2024-08-04 17:09
VLAI?
Summary
smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-35680 (GCVE-0-2020-35680)
Vulnerability from cvelistv5 – Published: 2020-12-24 15:53 – Updated: 2024-08-04 17:09
VLAI?
Summary
smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between the SMTP engine and the filters layer.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-8794 (GCVE-0-2020-8794)
Vulnerability from cvelistv5 – Published: 2020-02-25 16:38 – Updated: 2024-08-04 10:12
VLAI?
Summary
OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-8793 (GCVE-0-2020-8793)
Vulnerability from cvelistv5 – Published: 2020-02-25 16:22 – Updated: 2024-08-04 10:12
VLAI?
Summary
OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2023-29323 (GCVE-0-2023-29323)
Vulnerability from nvd – Published: 2023-04-04 00:00 – Updated: 2025-11-04 18:14
VLAI?
Summary
ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and OpenSMTPD Portable before 7.0.0-portable commit f748277, can abort upon a connection from a local, scoped IPv6 address.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-35679 (GCVE-0-2020-35679)
Vulnerability from nvd – Published: 2020-12-24 15:53 – Updated: 2024-08-04 17:09
VLAI?
Summary
smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-35680 (GCVE-0-2020-35680)
Vulnerability from nvd – Published: 2020-12-24 15:53 – Updated: 2024-08-04 17:09
VLAI?
Summary
smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between the SMTP engine and the filters layer.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2020-8794 (GCVE-0-2020-8794)
Vulnerability from nvd – Published: 2020-02-25 16:38 – Updated: 2024-08-04 10:12
VLAI?
Summary
OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2020-8793 (GCVE-0-2020-8793)
Vulnerability from nvd – Published: 2020-02-25 16:22 – Updated: 2024-08-04 10:12
VLAI?
Summary
OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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