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CVE-2020-11996

tomcat: specially crafted sequence of HTTP/2 requests can lead to DoS

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.

CVSS 3.1 · 7.5 High EPSS 26.7% KEV · Not listed
Vendors
Apache Canonical Debian and 4 more
Products
CVE-2019-20445

netty: HttpObjectDecoder.java allows Content-Length header to accompanied by second Content-Length header

HttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.

CVSS 3.1 · 9.1 Critical EPSS 13.8% KEV · Not listed
Vendors
Apache Canonical Debian and 3 more
Products
CVE-2019-20444

netty: HTTP request smuggling

HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."

CVSS 3.1 · 9.1 Critical EPSS 8.9% KEV · Not listed
Vendors
Products
CVE-2019-16869

netty: HTTP request smuggling by mishandled whitespace before the colon in HTTP headers

Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.

CVSS 3.1 · 7.5 High EPSS 8.6% KEV · Not listed
Vendors
Canonical Debian Netty and 1 more
Products
CVE-2019-14893

jackson-databind: Serialization gadgets in classes of the xalan package

A flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget when used in conjunction with polymorphic type handling methods such as `enableDefaultTyping()` or when @JsonTypeInfo is using `Id.CLASS` or `Id.MINIMAL_CLASS` or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.

CVSS 3.1 · 9.8 Critical EPSS 4.1% KEV · Not listed
Vendors
Fasterxml Netapp Oracle and 1 more
CVE-2019-10219

hibernate-validator: safeHTML validator allows XSS

A vulnerability was found in Hibernate-Validator. The SafeHtml validator annotation fails to properly sanitize payloads consisting of potentially malicious code in HTML comments and instructions. This vulnerability can result in an XSS attack.

CVSS 3.1 · 6.1 Medium EPSS 2.2% KEV · Not listed
Vendors
CVE-2019-10086

apache-commons-beanutils: does not suppresses the class property in PropertyUtilsBean by default

In Apache Commons Beanutils 1.9.2, a special BeanIntrospector class was added which allows suppressing the ability for an attacker to access the classloader via the class property available on all Java objects. We, however were not using this by default characteristic of the PropertyUtilsBean.

CVSS 3.1 · 7.3 High EPSS 29.1% KEV · Not listed
Vendors
Products
CVE-2018-7166

nodejs: Unintentional exposure of uninitialized memory

In all versions of Node.js 10 prior to 10.9.0, an argument processing flaw can cause `Buffer.alloc()` to return uninitialized memory. This method is intended to be safe and only return initialized, or cleared, memory. The third argument specifying `encoding` can be passed as a number, this is misinterpreted by `Buffer's` internal "fill" method as the `start` to a fill operation. This flaw may be abused where `Buffer.alloc()` arguments are derived from user input to return uncleared memory blocks that may contain sensitive information.

CVSS 3.1 · 7.5 High EPSS 3.3% KEV · Not listed
Vendors
CVE-2018-1257

spring-framework: ReDoS Attack with spring-messaging

Spring Framework, versions 5.0.x prior to 5.0.6, versions 4.3.x prior to 4.3.17, and older unsupported versions allows applications to expose STOMP over WebSocket endpoints with a simple, in-memory STOMP broker through the spring-messaging module. A malicious user (or attacker) can craft a message to the broker that can lead to a regular expression, denial of service attack.

CVSS 3.1 · 6.5 Medium EPSS 3.0% KEV · Not listed
Vendors
CVE-2018-0732

Client DoS due to large DH parameter

During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).

CVSS 3.1 · 7.5 High EPSS 47.0% KEV · Not listed
Vendors
Canonical Debian Nodejs and 2 more
Products
CVE-2021-37714

Crafted input may cause the jsoup HTML and XML parser to get stuck, timeout, or throw unchecked exceptions

jsoup is a Java library for working with HTML. Those using jsoup versions prior to 1.14.2 to parse untrusted HTML or XML may be vulnerable to DOS attacks. If the parser is run on user supplied input, an attacker may supply content that causes the parser to get stuck (loop indefinitely until cancelled), to complete more slowly than usual, or to throw an unexpected exception. This effect may support a denial of service attack. The issue is patched in version 1.14.2. There are a few available workarounds. Users may rate limit input parsing, limit the size of inputs based on system resources, and/or implement thread watchdogs to cap and timeout parse runtimes.

CVSS 3.1 · 7.5 High EPSS 6.7% KEV · Not listed
Vendors
Jsoup Netapp Oracle and 2 more
CVE-2021-30640

Auth weakness in JNDIRealm

A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65.

CVSS 3.1 · 6.5 Medium EPSS 9.9% KEV · Not listed
Vendors
Apache Debian Oracle and 1 more
CVE-2021-25329

Incomplete fix for CVE-2020-9484

The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue.

CVSS 3.1 · 7.0 High EPSS 9.5% KEV · Not listed
Vendors
Apache Debian Oracle and 1 more
CVE-2021-24122

Apache Tomcat information disclosure

When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some configurations. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances.

CVSS 3.1 · 5.9 Medium EPSS 22.9% KEV · Not listed
Vendors
Apache Debian Oracle and 1 more
CVE-2020-9484

tomcat: deserialization flaw in session persistence storage leading to RCE

When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed.

CVSS 3.1 · 7.0 High EPSS 55.5% KEV · Not listed
Vendors
Apache Canonical Debian and 5 more
Products
CVE-2020-1935

tomcat: Mishandling of Transfer-Encoding header allows for HTTP request smuggling

In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.

CVSS 3.1 · 4.8 Medium EPSS 9.4% KEV · Not listed
Vendors
Apache Canonical Debian and 4 more
Products
CVE-2020-13935

tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

CVSS 3.1 · 7.5 High EPSS 86.6% KEV · Not listed
Vendors
Apache Canonical Debian and 5 more
Products