The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6049-1 advisory.

  - The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a     ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server,     forcing the server to allocate all of its free memory to a single decoder. (CVE-2020-11612)

  - Netty is an open-source, asynchronous event-driven network application framework for rapid development of     maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a     vulnerability on Unix-like systems involving an insecure temp file. When netty's multipart decoders are     used local information disclosure can occur via the local system temporary directory if temporary storing     uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user.
    As such, writing to this directory using APIs that do not explicitly set the file/directory permissions     can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The     method File.createTempFile on unix-like systems creates a random file, but, by default will create this     file with the permissions -rw-r--r--. Thus, if sensitive information is written to this file, other     local users can read this information. This is the case in netty's AbstractDiskHttpData is vulnerable.
    This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own java.io.tmpdir     when you start the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something     that is only readable by the current user. (CVE-2021-21290)

  - Netty is an open-source, asynchronous event-driven network application framework for rapid development of     maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before     version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header     is present in the original HTTP/2 request, the field is not validated by `Http2MultiplexHandler` as it is     propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request     comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (`HttpRequest`,     `HttpContent`, etc.) via `Http2StreamFrameToHttpObjectCodec `and then sent up to the child channel's     pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy     case, users may assume the content-length is validated somehow, which is not the case. If the request is     forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs     to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to     HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of     this is true: `HTTP2MultiplexCodec` or `Http2FrameCodec` is used, `Http2StreamFrameToHttpObjectCodec` is     used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This     has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by     implementing a custom `ChannelInboundHandler` that is put in the `ChannelPipeline` behind     `Http2StreamFrameToHttpObjectCodec`. (CVE-2021-21295)

  - Netty is an open-source, asynchronous event-driven network application framework for rapid development of     maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before     version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is     not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to     true. This could lead to request smuggling if the request is proxied to a remote peer and translated to     HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case.
    This was fixed as part of 4.1.61.Final. (CVE-2021-21409)

  - The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed     output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are     affected. The malicious input can trigger an OOME and so a DoS attack (CVE-2021-37136)

  - The Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory     usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which     may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious     input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable     chunk. (CVE-2021-37137)

  - Netty is an asynchronous event-driven network application framework for rapid development of maintainable     high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when     they are present at the beginning / end of the header name. It should instead fail fast as these are not     allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause     netty to sanitize header names before it forward these to another remote system when used as proxy. This     remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users     should upgrade to version 4.1.71.Final. (CVE-2021-43797)

  - Netty project is an event-driven asynchronous network application framework. In versions prior to     4.1.86.Final, a StackOverflowError can be raised when parsing a malformed crafted message due to an     infinite recursion. This issue is patched in version 4.1.86.Final. There is no workaround, except using a     custom HaProxyMessageDecoder. (CVE-2022-41881)

  - Netty project is an event-driven asynchronous network application framework. Starting in version     4.1.83.Final and prior to 4.1.86.Final, when calling `DefaultHttpHeadesr.set` with an _iterator_ of     values, header value validation was not performed, allowing malicious header values in the iterator to     perform HTTP Response Splitting. This issue has been patched in version 4.1.86.Final. Integrators can work     around the issue by changing the `DefaultHttpHeaders.set(CharSequence, Iterator<?>)` call, into a     `remove()` call, and call `add()` in a loop over the iterator of values. (CVE-2022-41915)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Oracle NoSQL Database Enterprise running on the remote host is prior to 20.3.17. It is, therefore, affected by multiple vulnerabilities as referenced in the April 2021 CPU advisory.

  - Vulnerability in Oracle NoSQL Database (component: Administration (Node.js)). The supported     version that is affected is Prior to 20.3. Easily exploitable vulnerability allows unauthenticated     attacker with network access via multiple protocols to compromise Oracle NoSQL Database.
    Successful attacks of this vulnerability can result in unauthorized ability to cause a hang     or frequently repeatable crash (complete DOS) of Oracle NoSQL Database. (CVE-2021-22883)

  - Security-in-Depth issue in Oracle NoSQL Database (component: Administration (jackson-databind)).
    This vulnerability cannot be exploited in the context of this product. (CVE-2019-14379)

  - Vulnerability in Oracle NoSQL Database (component: Administration (Google Guava)). The supported     version that is affected is Prior to 20.3. Easily exploitable vulnerability allows low privileged     attacker with logon to the infrastructure where Oracle NoSQL Database executes to compromise     Oracle NoSQL Database. Successful attacks of this vulnerability can result in unauthorized read     access to a subset of Oracle NoSQL Database accessible data. (CVE-2020-8908)   
  - Vulnerability in Oracle NoSQL Database (component: Administration (Netty)). The supported version     that is affected is Prior to 20.3. Easily exploitable vulnerability allows unauthenticated attacker     with network access via HTTP to compromise Oracle NoSQL Database. Successful attacks of this     vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash     (complete DOS) of Oracle NoSQL Database. (CVE-2020-11612)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Oracle WebCenter Portal installed on the remote host is missing a security patch from the January 2021 Critical Patch Update (CPU). It is, therefore, affected by the following vulnerabilities:

  - Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework   (Apache Commons Compress)). Supported versions that are affected are 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable   vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal.   Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently   repeatable crash (complete DOS) of Oracle WebCenter Portal (CVE-2019-12402).

  - Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework   (Netty)). Supported versions that are affected are 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows   unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of   this vulnerability can result in takeover of Oracle WebCenter Portal (CVE-2020-11612). 

  - Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework   (Apache Tika)). Supported versions that are affected are 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability    allows unauthenticated attacker with logon to the infrastructure where Oracle WebCenter Portal executes to    compromise Oracle WebCenter Portal. Successful attacks require human interaction from a person other than the    attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently   repeatable crash (complete DOS) of Oracle WebCenter Portal (CVE-2020-9489).

Note that Nessus has not attempted to exploit these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1313 advisory.

  - rubygem-rest-client: session fixation vulnerability Set-Cookie headers present in an HTTP 30x redirection     responses (CVE-2015-1820)

  - rubygem-rest-client: unsanitized application logging (CVE-2015-3448)

  - foreman: Managing repositories with their id via hammer does not respect the role filters (CVE-2017-2662)

  - rack-protection: Timing attack in authenticity_token.rb (CVE-2018-1000119)

  - rubygem-rack: hijack sessions by using timing attacks targeting the session id (CVE-2019-16782)

  - python-psutil: Double free because of refcount mishandling (CVE-2019-18874)

  - netty: compression/decompression codecs don't enforce limits on buffer allocation sizes (CVE-2020-11612)

  - foreman: world-readable OMAPI secret through the ISC DHCP server (CVE-2020-14335)

  - rubygem-activeview: Cross-site scripting in translation helpers (CVE-2020-15169)

  - resteasy-client: potential sensitive information leakage in JAX-RS RESTEasy Client's     WebApplicationException handling (CVE-2020-25633)

  - rubygem-activestorage: circumvention of file size limits in ActiveStorage (CVE-2020-8162)

  - rubygem-actionpack: possible strong parameters bypass (CVE-2020-8164)

  - rubygem-activesupport: potentially unintended unmarshalling of user-provided objects in MemCacheStore and     RedisCacheStore (CVE-2020-8165)

  - rubygem-actionpack: ability to forge per-form CSRF tokens given a global CSRF token (CVE-2020-8166)

  - rubygem-actionview: CSRF vulnerability in rails-ujs (CVE-2020-8167)

  - rubygem-rails: untrusted users able to run pending migrations in production (CVE-2020-8185)

  - django: potential SQL injection via tolerance parameter in GIS functions and aggregates on Oracle     (CVE-2020-9402)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Multiple security issues were discovered in Netty, a Java NIO client/server framework, which could result in HTTP request smuggling, denial of service or information disclosure.

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4600-2 advisory.

  - 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.
    (CVE-2019-20444)

  - 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. (CVE-2019-20445)

  - The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a     ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server,     forcing the server to allocate all of its free memory to a single decoder. (CVE-2020-11612)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Several vulnerabilities have been discovered in netty, a Java NIO client/server socket framework.

CVE-2019-20444

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.'

CVE-2019-20445

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.

CVE-2020-7238

Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869.

CVE-2020-11612

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

For Debian 9 stretch, these problems have been fixed in version 1:4.1.7-2+deb9u2.

We recommend that you upgrade your netty packages.

For the detailed security status of netty please refer to its security tracker page at: https://security-tracker.debian.org/tracker/netty

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:3463 advisory.

  - hibernate: SQL injection issue in Hibernate ORM (CVE-2019-14900)

  - EAP: field-name is not parsed in accordance to RFC7230 (CVE-2020-1710)

  - Wildfly: Improper authorization issue in WildFlySecurityManager when using alternative protection domain     (CVE-2020-1748)

  - jackson-databind: mishandles the interaction between serialization gadgets and typing which could result     in remote command execution (CVE-2020-10672, CVE-2020-10673)

  - dom4j: XML External Entity vulnerability in default SAX parser (CVE-2020-10683)

  - Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests     (CVE-2020-10687)

  - hibernate-validator: Improper input validation in the interpolation of constraint error messages     (CVE-2020-10693)

  - wildfly-elytron: session fixation when using FORM authentication (CVE-2020-10714)

  - wildfly: exposed setting of TCCL via the EmbeddedManagedProcess API (CVE-2020-10718)

  - wildfly: unsafe deserialization in Wildfly Enterprise Java Beans (CVE-2020-10740)

  - netty: compression/decompression codecs don't enforce limits on buffer allocation sizes (CVE-2020-11612)

  - wildfly: Some EJB transaction objects may get accumulated causing Denial of Service (CVE-2020-14297)

  - wildfly: EJB SessionOpenInvocations may not be removed properly after a response is received causing     Denial of Service (CVE-2020-14307)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:3461 advisory.

  - hibernate: SQL injection issue in Hibernate ORM (CVE-2019-14900)

  - EAP: field-name is not parsed in accordance to RFC7230 (CVE-2020-1710)

  - Wildfly: Improper authorization issue in WildFlySecurityManager when using alternative protection domain     (CVE-2020-1748)

  - jackson-databind: mishandles the interaction between serialization gadgets and typing which could result     in remote command execution (CVE-2020-10672, CVE-2020-10673)

  - dom4j: XML External Entity vulnerability in default SAX parser (CVE-2020-10683)

  - Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests     (CVE-2020-10687)

  - hibernate-validator: Improper input validation in the interpolation of constraint error messages     (CVE-2020-10693)

  - wildfly-elytron: session fixation when using FORM authentication (CVE-2020-10714)

  - wildfly: exposed setting of TCCL via the EmbeddedManagedProcess API (CVE-2020-10718)

  - wildfly: unsafe deserialization in Wildfly Enterprise Java Beans (CVE-2020-10740)

  - netty: compression/decompression codecs don't enforce limits on buffer allocation sizes (CVE-2020-11612)

  - wildfly: Some EJB transaction objects may get accumulated causing Denial of Service (CVE-2020-14297)

  - wildfly: EJB SessionOpenInvocations may not be removed properly after a response is received causing     Denial of Service (CVE-2020-14307)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 6 / 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2605 advisory.

  - netty: compression/decompression codecs don't enforce limits on buffer allocation sizes (CVE-2020-11612)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
174932	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM / 22.04 LTS : Netty vulnerabilities (USN-6049-1)	Nessus	Ubuntu Local Security Checks	medium
148977	Oracle NoSQL Database Multiple Vulnerabilities (Apr 2021 CPU)	Nessus	Databases	critical
148925	Oracle WebCenter Portal Multiple Vulnerabilities (Apr 2021 CPU)	Nessus	Misc.	high
148903	RHEL 7 : Satellite 6.9 Release (Moderate) (RHSA-2021:1313)	Nessus	Red Hat Local Security Checks	high
148326	Debian DSA-4885-1 : netty - security update	Nessus	Debian Local Security Checks	critical
141934	Ubuntu 18.04 LTS : Netty vulnerabilities (USN-4600-2)	Nessus	Ubuntu Local Security Checks	critical
140295	Debian DLA-2364-1 : netty security update	Nessus	Debian Local Security Checks	critical
139619	RHEL 8 : Red Hat JBoss Enterprise Application Platform 7.3.2 (RHSA-2020:3463)	Nessus	Red Hat Local Security Checks	critical
139618	RHEL 6 : Red Hat JBoss Enterprise Application Platform 7.3.2 (RHSA-2020:3461)	Nessus	Red Hat Local Security Checks	critical
137563	RHEL 6 / 8 : AMQ Clients 2.7.0 Release (Low) (RHSA-2020:2605)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2020-11612

high

Tenable Plugins

medium

critical

high

high

critical

critical

critical

critical

critical

high