293 matches found
CVE-2020-28200
The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension...
Code injection
The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension...
CVE-2020-28200
CVE-2020-28200 affects Dovecot’s Sieve engine (regex extension) prior to 2.3.15, enabling Uncontrolled Resource Consumption, i.e., DoS via crafted complex regex scripts. Related advisories indicate upgrade to Dovecot 2.3.15+ (e.g., 2.3.15-1+/upstream fix) and, as a workaround, disabling the regex...
CVE-2020-28200
The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension...
CVE-2020-28200
The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension...
Dovecot 1.2.0 - 2.3.14 DoS Vulnerability
Dovecot is prone to a denial of service DoS vulnerability. Copyright C 2021 Greenbone Networks GmbH 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-or-later This program is free software; yo...
[ASA-202106-57] pigeonhole: denial of service
Arch Linux Security Advisory ASA-202106-57 ========================================== Severity: Medium Date : 2021-06-22 CVE-ID : CVE-2020-28200 Package : pigeonhole Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-2088 Summary ======= The package pigeonhole before...
CVE-2020-28200
The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension...
CVE-2020-28200
The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension...
UBUNTU-CVE-2020-28200
The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension...
PT-2021-3384 · Dovecot +3 · Dovecot +3
Name of the Vulnerable Software and Affected Versions: Dovecot versions prior to 2.3.15 Description: The issue is related to errors in resource management in the Dovecot mail server, which can be exploited by a remote attacker to cause a denial of service. The Sieve engine in Dovecot is affected,...
Open-Xchange: Null pointer dereference in lib-sieve after calling sieve_binary_block_index
There are some places that program calls function sievebinaryblockindex without checking the return valuemainly in sieve-binary-dumper.c. Such as: pigeonhole/src/lib-sieve/sieve-binary-dumper.c: bool sievebinarydumperrunstruct sievebinarydumper dumper, struct ostream stream, bool verbose struct...
NewStart CGSL MAIN 6.02 : cyrus-imapd Multiple Vulnerabilities (NS-SA-2021-0086)
The remote NewStart CGSL host, running version MAIN 6.02, has cyrus-imapd packages installed that are affected by multiple vulnerabilities: - Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context o...
Oracle Linux 8 : cyrus-imapd (ELSA-2020-4655)
The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-4655 advisory. - Add fix for CVE-2019-19783 Tenable has extracted the preceding description block directly from the Oracle Linux security advisory. Note that Nessus h...
cyrus-imapd: lmtpd component created mailboxes with administrator privileges if the "fileinto" was used, bypassing ACL checks
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed 3.x or certain non-default sieve options are enabled 2.x, a user with a mail account on the service can use a sieve script containing a fileinto directive to...
RHEL 8 : cyrus-imapd (RHSA-2020:4655)
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4655 advisory. The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and SIEVE support. Security Fixes: cyrus-imapd:...
Moderate: cyrus-imapd security update
The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and SIEVE support. Security Fixes: cyrus-imapd: privilege escalation in HTTP request CVE-2019-18928 cyrus-imapd: lmtpd component created mailboxes with administrator privileges if the "fileinto" was used,...
Open-Xchange: A malicious user can upload a malicious script through managesieve and trigger its execution in order to consume almost 100% of CPU (LMTP).
Summary A malicious user can create a malicious sieve script attached as "test.sieve", upload it to the server through managesieve and set as active. Then the user can send several specially crafted messages to himself to trigger long script execution. The attacker has to send one message per...
dovecot-pigeonhole -- Sieve excessive resource usage
Dovecot team reports reports: Sieve interpreter is not protected against abusive scripts that claim excessive resource usage. Fixed by limiting the user CPU time per single script execution and cumulatively over several script runs within a configurable timeout period. Sufficiently large CPU time...
Open-Xchange: A specifically designed sieve script can cause a DoS in lib-sieve during sieve script compilation via NULL pointer dereference
Reproduction realcrash.sieve is the attached script 1. Build dovecot and pigeonhole 2. Run sievec realcrash.sieve Requirements include and variables extensions should be required. One of the global commands global/export/import without any arguments should be followed by the same command with val...