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CVE-2020-28196

krb5: unbounded recursion via an ASN.1-encoded Kerberos message in lib/krb5/asn.1/asn1_encode.c may lead to DoS

MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.

CVSS 3.1 · 7.5 High EPSS 4.2% KEV · Not listed
Vendors
Fedoraproject Mit Netapp and 2 more
Products
Fedora Kerberos 5 Active Iq Unified Manager and 10 more
CVE-2020-10878

perl: corruption of intermediate language state of compiled regular expression due to integer overflow leads to DoS

Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.

CVSS 3.1 · 8.6 High EPSS 4.9% KEV · Not listed
Vendors
Fedoraproject Netapp Opensuse and 3 more
Products
Fedora Oncommand Workflow Automation Snap Creator Framework and 19 more
CVE-2019-5443

curl: Windows OpenSSL engine code injection

A non-privileged user or program can put code and a config file in a known non-privileged path (under C:/usr/local/) that will make curl <= 7.65.1 automatically run the code (as an openssl "engine") on invocation. If that curl is invoked by a privileged user it can do anything it wants.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Haxx Microsoft Netapp and 1 more
Products
Curl Windows Oncommand Insight and 7 more
CVE-2019-16168

sqlite: Division by zero in whereLoopAddBtreeIndex in sqlite3.c

In SQLite through 3.29.0, whereLoopAddBtreeIndex in sqlite3.c can crash a browser or other application because of missing validation of a sqlite_stat1 sz field, aka a "severe division by zero in the query planner."

CVSS 3.1 · 6.5 Medium EPSS 4.2% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 6 more
Products
Ubuntu Linux Debian Linux Fedora and 18 more
CVE-2021-43797

HTTP fails to validate against control chars in header names which may lead to HTTP request smuggling

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.

CVSS 3.1 · 6.5 Medium EPSS 2.9% KEV · Not listed
Vendors
Debian Netapp Netty and 3 more
Products
Debian Linux Oncommand Workflow Automation Snapcenter and 25 more
CVE-2021-3449

NULL pointer deref in signature_algorithms processing

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

CVSS 3.1 · 5.9 Medium EPSS 63.5% KEV · Not listed
Vendors
Checkpoint Debian Fedoraproject and 10 more
Products
Multi-domain Management Multi-domain Management Firmware Quantum Security Gateway and 169 more
CVE-2021-21409

Possible request smuggling in HTTP/2 due missing validation of content-length

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.

CVSS 3.1 · 5.9 Medium EPSS 4.9% KEV · Not listed
Vendors
Debian Netapp Netty and 3 more
Products
Debian Linux Oncommand Api Services Oncommand Workflow Automation and 26 more
CVE-2021-21295

Possible request smuggling in HTTP/2 due missing validation

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`.

CVSS 3.1 · 5.9 Medium EPSS 18.9% KEV · Not listed
Vendors
Apache Debian Netapp and 4 more
Products
Kudu Zookeeper Debian Linux and 16 more
CVE-2017-5645

log4j: Socket receiver deserialization vulnerability

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.

CVSS 3.1 · 9.8 Critical EPSS 89.4% KEV · Not listed
Vendors
Apache Netapp Oracle and 1 more
Products
Log4j Oncommand Api Services Oncommand Insight and 83 more
CVE-2016-9841

zlib: Out-of-bounds pointer arithmetic in inffast.c

inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

CVSS 3.1 · 9.8 Critical EPSS 7.5% KEV · Not listed
Vendors
Apple Canonical Debian and 6 more
Products
Iphone Os Mac Os X Tvos and 39 more
CVE-2021-3711

SM2 Decryption Buffer Overflow

In order to decrypt SM2 encrypted data an application is expected to call the API function EVP_PKEY_decrypt(). Typically an application will call this function twice. The first time, on entry, the "out" parameter can be NULL and, on exit, the "outlen" parameter is populated with the buffer size required to hold the decrypted plaintext. The application can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() again, but this time passing a non-NULL value for the "out" parameter. A bug in the implementation of the SM2 decryption code means that the calculation of the buffer size required to hold the plaintext returned by the first call to EVP_PKEY_decrypt() can be smaller than the actual size required by the second call. This can lead to a buffer overflow when EVP_PKEY_decrypt() is called by the application a second time with a buffer that is too small. A malicious attacker who is able present SM2 content for decryption to an application could cause attacker chosen data to overflow the buffer by up to a maximum of 62 bytes altering the contents of other data held after the buffer, possibly changing application behaviour or causing the application to crash. The location of the buffer is application dependent but is typically heap allocated. Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k).

CVSS 3.1 · 9.8 Critical EPSS 87.8% KEV · Not listed
Vendors
Debian Netapp Openssl and 3 more
Products
Debian Linux Active Iq Unified Manager Clustered Data Ontap and 29 more
CVE-2021-3450

CA certificate check bypass with X509_V_FLAG_X509_STRICT

The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an additional strict check. An error in the implementation of this check meant that the result of a previous check to confirm that certificates in the chain are valid CA certificates was overwritten. This effectively bypasses the check that non-CA certificates must not be able to issue other certificates. If a "purpose" has been configured then there is a subsequent opportunity for checks that the certificate is a valid CA. All of the named "purpose" values implemented in libcrypto perform this check. Therefore, where a purpose is set the certificate chain will still be rejected even when the strict flag has been used. A purpose is set by default in libssl client and server certificate verification routines, but it can be overridden or removed by an application. In order to be affected, an application must explicitly set the X509_V_FLAG_X509_STRICT verification flag and either not set a purpose for the certificate verification or, in the case of TLS client or server applications, override the default purpose. OpenSSL versions 1.1.1h and newer are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1h-1.1.1j).

CVSS 3.1 · 7.4 High EPSS 18.3% KEV · Not listed
Vendors
Fedoraproject Freebsd Mcafee and 8 more
Products
Fedora Freebsd Web Gateway and 36 more
CVE-2020-1967

Segmentation fault in SSL_check_chain

Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).

CVSS 3.1 · 7.5 High EPSS 53.3% KEV · Not listed
Vendors
Broadcom Debian Fedoraproject and 7 more
Products
Fabric Operating System Debian Linux Fedora and 23 more
CVE-2019-17531

jackson-databind: Serialization gadgets in org.apache.log4j.receivers.db.*

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the apache-log4j-extra (version 1.2.x) jar in the classpath, and an attacker can provide a JNDI service to access, it is possible to make the service execute a malicious payload.

CVSS 3.1 · 9.8 Critical EPSS 5.4% KEV · Not listed
Vendors
Debian Fasterxml Netapp and 2 more
Products
Debian Linux Jackson-databind Oncommand Workflow Automation and 30 more
CVE-2019-16942

jackson-databind: Serialization gadgets in org.apache.commons.dbcp.datasources.*

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the commons-dbcp (1.4) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of org.apache.commons.dbcp.datasources.SharedPoolDataSource and org.apache.commons.dbcp.datasources.PerUserPoolDataSource mishandling.

CVSS 3.1 · 9.8 Critical EPSS 5.7% KEV · Not listed
Vendors
Debian Fasterxml Fedoraproject and 3 more
Products
Debian Linux Jackson-databind Fedora and 34 more
CVE-2019-16335

jackson-databind: Serialization gadgets in com.zaxxer.hikari.HikariDataSource

A Polymorphic Typing issue was discovered in FasterXML jackson-databind before 2.9.10. It is related to com.zaxxer.hikari.HikariDataSource. This is a different vulnerability than CVE-2019-14540.

CVSS 3.1 · 9.8 Critical EPSS 5.0% KEV · Not listed
Vendors
Debian Fasterxml Fedoraproject and 3 more
Products
Debian Linux Jackson-databind Fedora and 23 more