Vulnerabilities (CVE)

Filtered by CWE-400
Total 2111 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-44686 2 Calibre-ebook, Fedoraproject 2 Calibre, Fedora 2024-11-21 5.0 MEDIUM 7.5 HIGH
calibre before 5.32.0 contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service) in html_preprocess_rules in ebooks/conversion/preprocess.py.
CVE-2021-44527 1 Ui 1 Unifi Switch Firmware 2024-11-21 6.1 MEDIUM 6.5 MEDIUM
A vulnerability found in UniFi Switch firmware Version 5.43.35 and earlier allows a malicious actor who has already gained access to the network to perform a Deny of Service (DoS) attack on the affected switch.This vulnerability is fixed in UniFi Switch firmware 5.76.6 and later.
CVE-2021-43933 1 Fanuc 1 Roboguide 2024-11-21 4.3 MEDIUM 6.1 MEDIUM
The affected product is vulnerable to a network-based attack by threat actors sending unimpeded requests to the receiving server, which could cause a denial-of-service condition due to lack of heap memory resources.
CVE-2021-43854 1 Nltk 1 Nltk 2024-11-21 5.0 MEDIUM 7.5 HIGH
NLTK (Natural Language Toolkit) is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. Versions prior to 3.6.5 are vulnerable to regular expression denial of service (ReDoS) attacks. The vulnerability is present in PunktSentenceTokenizer, sent_tokenize and word_tokenize. Any users of this class, or these two functions, are vulnerable to the ReDoS attack. In short, a specifically crafted long input to any of these vulnerable functions will cause them to take a significant amount of execution time. If your program relies on any of the vulnerable functions for tokenizing unpredictable user input, then we would strongly recommend upgrading to a version of NLTK without the vulnerability. For users unable to upgrade the execution time can be bounded by limiting the maximum length of an input to any of the vulnerable functions. Our recommendation is to implement such a limit.
CVE-2021-43173 2 Debian, Nlnetlabs 2 Debian Linux, Routinator 2024-11-21 5.0 MEDIUM 7.5 HIGH
In NLnet Labs Routinator prior to 0.10.2, a validation run can be delayed significantly by an RRDP repository by not answering but slowly drip-feeding bytes to keep the connection alive. This can be used to effectively stall validation. While Routinator has a configurable time-out value for RRDP connections, this time-out was only applied to individual read or write operations rather than the complete request. Thus, if an RRDP repository sends a little bit of data before that time-out expired, it can continuously extend the time it takes for the request to finish. Since validation will only continue once the update of an RRDP repository has concluded, this delay will cause validation to stall, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.
CVE-2021-42836 1 Gjson Project 1 Gjson 2024-11-21 5.0 MEDIUM 7.5 HIGH
GJSON before 1.9.3 allows a ReDoS (regular expression denial of service) attack.
CVE-2021-42120 1 Businessdnasolutions 1 Topease 2024-11-21 4.0 MEDIUM 6.5 MEDIUM
Insufficient Input Validation in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 on all object attributes allows an authenticated remote attacker with Object Modification privileges to insert arbitrarily long strings, eventually leading to exhaustion of the underlying resource.
CVE-2021-41186 1 Fluentd 1 Fluentd 2024-11-21 5.0 MEDIUM 5.9 MEDIUM
Fluentd collects events from various data sources and writes them to files to help unify logging infrastructure. The parser_apache2 plugin in Fluentd v0.14.14 to v1.14.1 suffers from a regular expression denial of service (ReDoS) vulnerability. A broken apache log with a certain pattern of string can spend too much time in a regular expression, resulting in the potential for a DoS attack. This issue is patched in version 1.14.2 There are two workarounds available. Either don't use parser_apache2 for parsing logs (which cannot guarantee generated by Apache), or put patched version of parser_apache2.rb into /etc/fluent/plugin directory (or any other directories specified by the environment variable `FLUENT_PLUGIN` or `--plugin` option of fluentd).
CVE-2021-41119 1 Wire 1 Wire-server 2024-11-21 5.0 MEDIUM 5.3 MEDIUM
Wire-server is the system server for the wire back-end services. Releases prior to v2022-03-01 are subject to a denial of service attack via a crafted object causing a hash collision. This collision causes the server to spend at least quadratic time parsing it which can lead to a denial of service for a heavily used server. The issue has been fixed in wire-server 2022-03-01 and is already deployed on all Wire managed services. On premise instances of wire-server need to be updated to 2022-03-01, so that their backends are no longer affected. There are no known workarounds for this issue.
CVE-2021-41118 1 Dynamicpagelist3 Project 1 Dynamicpagelist3 2024-11-21 5.0 MEDIUM 5.3 MEDIUM
The DynamicPageList3 extension is a reporting tool for MediaWiki, listing category members and intersections with various formats and details. In affected versions unsanitised input of regular expression date within the parameters of the DPL parser function, allowed for the possibility of ReDoS (Regex Denial of Service). This has been resolved in version 3.3.6. If you are unable to update you may also set `$wgDplSettings['functionalRichness'] = 0;` or disable DynamicPageList3 to mitigate.
CVE-2021-41014 1 Fortinet 1 Fortiweb 2024-11-21 5.0 MEDIUM 7.5 HIGH
A uncontrolled resource consumption in Fortinet FortiWeb version 6.4.1 and below, 6.3.15 and below allows an unauthenticated attacker to make the httpsd daemon unresponsive via huge HTTP packets
CVE-2021-40406 1 Reolink 2 Rlc-410w, Rlc-410w Firmware 2024-11-21 7.8 HIGH 7.5 HIGH
A denial of service vulnerability exists in the cgiserver.cgi session creation functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted HTTP request can lead to prevent users from logging in. An attacker can send an HTTP request to trigger this vulnerability.
CVE-2021-40125 1 Cisco 18 Adaptive Security Appliance Software, Asa 5505, Asa 5505 Firmware and 15 more 2024-11-21 6.3 MEDIUM 5.3 MEDIUM
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.
CVE-2021-40117 1 Cisco 19 Adaptive Security Appliance, Adaptive Security Appliance Software, Asa 5505 and 16 more 2024-11-21 7.8 HIGH 8.6 HIGH
A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because incoming SSL/TLS packets are not properly processed. An attacker could exploit this vulnerability by sending a crafted SSL/TLS packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
CVE-2021-40011 1 Huawei 3 Emui, Harmonyos, Magic Ui 2024-11-21 5.0 MEDIUM 7.5 HIGH
There is an uncontrolled resource consumption vulnerability in the display module. Successful exploitation of this vulnerability may affect integrity.
CVE-2021-3909 2 Cloudflare, Debian 2 Octorpki, Debian Linux 2024-11-21 5.0 MEDIUM 4.4 MEDIUM
OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever. Specifically, the repository that OctoRPKI sends HTTP requests to will keep the connection open for a day before a response is returned, but does keep drip feeding new bytes to keep the connection alive.
CVE-2021-3822 1 Jsoneditoronline 1 Jsoneditor 2024-11-21 5.0 MEDIUM 7.5 HIGH
jsoneditor is vulnerable to Inefficient Regular Expression Complexity
CVE-2021-3737 6 Canonical, Fedoraproject, Netapp and 3 more 17 Ubuntu Linux, Fedora, Hci and 14 more 2024-11-21 7.1 HIGH 7.5 HIGH
A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.
CVE-2021-3733 4 Fedoraproject, Netapp, Python and 1 more 20 Extra Packages For Enterprise Linux, Fedora, Hci Compute Node Firmware and 17 more 2024-11-21 4.0 MEDIUM 6.5 MEDIUM
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
CVE-2021-3629 2 Netapp, Redhat 9 Active Iq Unified Manager, Oncommand Insight, Oncommand Workflow Automation and 6 more 2024-11-21 4.3 MEDIUM 5.9 MEDIUM
A flaw was found in Undertow. A potential security issue in flow control handling by the browser over http/2 may potentially cause overhead or a denial of service in the server. The highest threat from this vulnerability is availability. This flaw affects Undertow versions prior to 2.0.40.Final and prior to 2.2.11.Final.