CVE-2021-45486

In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small...

CVE-2021-45486

In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small...

Linux kernel加密问题漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. The Linux kernel suffers from a security vulnerability that stems from an information leak in the net IPv6 output core.c in the IPv6 implementation of the Linux kernel prior to...

DEBIAN-CVE-2021-44847

A stack-based buffer overflow in handlerequest function in DHT.c in toxcore 0.1.9 through 0.1.11 and 0.2.0 through 0.2.12 caused by an improper length calculation during the handling of received network packets allows remote attackers to crash the process or potentially execute arbitrary code via...

UBUNTU-CVE-2018-25022

The Onion module in toxcore before 0.2.2 doesn't restrict which packets can be onion-routed, which allows a remote attacker to discover a target user's IP address when knowing only their Tox Id by positioning themselves close to target's Tox Id in the DHT for the target to establish an onion...

Amazon Linux 2 : cyrus-imapd (ALAS-2021-1725)

The version of cyrus-imapd installed on the remote host is prior to 2.4.22-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1725 advisory. A flaw was found in cyrus-imapd. A bad string hashing algorithm used in internal hash tables allows user inputs to be stored i...

libsepol: use-after-free in __cil_verify_classperms()

The CIL compiler in SELinux 3.2 has a use-after-free in cilverifyclassperms called from verifymappermclassperms and hashtabmap...

USN-5115-1: Linux kernel (OEM) vulnerabilities

It was discovered that a race condition existed in the Atheros Ath9k WiFi driver in the Linux kernel. An attacker could possibly use this to expose sensitive information WiFi network traffic. CVE-2020-3702 Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF...

Reddit: Hash-Collision Denial-of-Service Vulnerability in Markdown Parser

Summary: We have found three bugs in Reddit's markdown parser. Two of these bugs are exploitable to launch an algorithmic complexity denial-of-service DoS attack. In this report we explain the bugs and exploits. We also show, in a non-disruptive way, that it appears to exist in the current versio...

cyrus-imapd: Denial of service via string hashing algorithm collisions

A flaw was found in cyrus-imapd. A bad string hashing algorithm used in internal hash tables allows user inputs to be stored in predictable buckets. A user may cause a CPU denial of service by maliciously directing many inputs to a single bucket. The highest threat from this vulnerability is to...

Oracle Linux 8 : cyrus-imapd (ELSA-2021-3492)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-3492 advisory. 3.0.7-20.1 - Fix for CVE-2021-33582 Tenable has extracted the preceding description block directly from the Oracle Linux security advisory. Note that Nessus has...

FreeBSD : cyrus-imapd -- multiple-minute daemon hang via input that is mishandled during hash-table interaction (3d915d96-0b1f-11ec-8d9f-080027415d17)

Cyrus IMAP 3.4.2 Release Notes states : Fixed CVE-2021-33582: Certain user inputs are used as hash table keys during processing. A poorly chosen string hashing algorithm meant that the user could control which bucket their data was stored in, allowing a malicious user to direct many inputs to a...

Denial Of Service (DoS)

Cyrus IMAP is vulnerble to denial of service. It allows remote attackers to cause a denial of service multiple-minute daemon hang via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow...

Cyrus IMAP < 3.0.16, 3.2.x < 3.2.8, 3.4.x < 3.4.2 DoS Vulnerability

Cyrus IMAP 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;...

DEBIAN-CVE-2021-33582

Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service multiple-minute daemon hang via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16...

CVE-2021-33582

Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service multiple-minute daemon hang via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16...

CVE-2021-33582

Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service multiple-minute daemon hang via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16...

UBUNTU-CVE-2021-33582

Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service multiple-minute daemon hang via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16...

CVE-2021-33582

Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service multiple-minute daemon hang via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16...

CVE-2021-37220

MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can, for example, be seen with crafted "mutool draw" input...