CVE-2023-51766

Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports . but...

CVE-2023-51764

Postfix CVE-2023-51764 affects Postfix versions prior to fixed releases (e.g., 3.8.5 and earlier patched lines) and allows SMTP smuggling via non-standard end-of-data handling, enabling spoofed MAIL FROM and SPF bypass. Public advisories (ALMA/AMAZON/Linux distributions and Debian LTS) confirm th...

CVE-2023-51764

Postfix through 3.8.5 allows SMTP smuggling unless configured with smtpddatarestrictions=rejectunauthpipelining and smtpddiscardehlokeywords=chunking or certain other options that exist in recent versions. Remote attackers can use a published exploitation technique to inject e-mail messages with ...

CVE-2023-51764

Postfix through 3.8.5 allows SMTP smuggling unless configured with smtpddatarestrictions=rejectunauthpipelining and smtpddiscardehlokeywords=chunking or certain other options that exist in recent versions. Remote attackers can use a published exploitation technique to inject e-mail messages with ...

CVE-2023-51765

sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports . but some other...

CVE-2023-51766

Exim before 4.97.1 is vulnerable to SMTP smuggling in specific PIPELINING/CHUNKING configurations, enabling a remote attacker to inject messages with a spoofed MAIL FROM and bypass SPF. The root cause cited across multiple sources is that Exim handles end-of-data sequences using . in ways that so...

CVE-2023-51766

Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports . but...

CVE-2023-51766

Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports . but...

Fedora: Security Advisory (FEDORA-2023-b317dd9220)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] Fedora 39 Update: libspf2-1.2.11-11.20210922git4915c308.fc39

libspf2 is an implementation of the SPF Sender Policy Framework specification as found at: http://www.ietf.org/internet-drafts/draft-mengwong-spf-00.txt SPF allows email systems to check SPF DNS records and make sure that an email is authorized by the administrator of the domain name that it is...

Spoofy - Program That Checks If A List Of Domains Can Be Spoofed Based On SPF And DMARC Records

Spoofy is a program that checks if a list of domains can be spoofed based on SPF and DMARC records. You may be asking, "Why do we need another tool that can check if a domain can be spoofed?" Well, Spoofy is different and here is why: 1. Authoritative lookups on all lookups with known fallback...

Fedora: Security Advisory for libspf2 (FEDORA-2023-ae340c92ea)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] Fedora 38 Update: libspf2-1.2.11-11.20210922git4915c308.fc38

libspf2 is an implementation of the SPF Sender Policy Framework specification as found at: http://www.ietf.org/internet-drafts/draft-mengwong-spf-00.txt SPF allows email systems to check SPF DNS records and make sure that an email is authorized by the administrator of the domain name that it is...

[SECURITY] Fedora 37 Update: libspf2-1.2.11-11.20210922git4915c308.fc37

libspf2 is an implementation of the SPF Sender Policy Framework specification as found at: http://www.ietf.org/internet-drafts/draft-mengwong-spf-00.txt SPF allows email systems to check SPF DNS records and make sure that an email is authorized by the administrator of the domain name that it is...

FreeBSD : libspf2 -- Integer Underflow Remote Code Execution (915855ad-283d-4597-b01e-e0bf611db78b)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 915855ad-283d-4597-b01e-e0bf611db78b advisory. - Trendmicro ZDI reports: Integer Underflow Remote Code Execution Vulnerability The specific flaw exist...

CVE-2023-42118

An integer underflow flaw was discovered in libspf2 library which exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly validate user-supplied data, which can result in an integer underflow before writing to memory. This vulnerability allows...

SUSE CVE-2023-42118

Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing o...

(0Day) Exim libspf2 Integer Underflow Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly...

Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS : OpenDMARC vulnerabilities (USN-6356-1)

The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6356-1 advisory. Jianjun Chen, Vern Paxson and Jian Jiang discovered that OpenDMARC incorrectly handled certain inputs. If a user or an automated...

Debian dla-3546 : libopendmarc-dev - security update

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3546 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-3546-1 [email protected] https://www.debian.org/lts/security/...