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CVE-2021-3737

python: urllib: HTTP client possible infinite loop on a 100 Continue response

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.

CVSS 3.1 · 7.5 High EPSS 13.2% KEV · Not listed
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Ubuntu Linux Fedora Hci and 15 more
CVE-2021-3520

lz4: memory corruption due to an integer overflow bug caused by memmove argument

There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.

CVSS 3.1 · 9.8 Critical EPSS 3.4% KEV · Not listed
Vendors
CVE-2020-29363

p11-kit: out-of-bounds write in p11_rpc_buffer_get_byte_array_value function in rpc-message.c

An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.

CVSS 3.1 · 7.5 High EPSS 3.5% KEV · Not listed
Vendors
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
CVE-2020-15358

sqlite: heap-based buffer overflow in multiSelectOrderBy due to mishandling of query-flattener optimization in select.c

In SQLite before 3.32.3, select.c mishandles query-flattener optimization, leading to a multiSelectOrderBy heap overflow because of misuse of transitive properties for constant propagation.

CVSS 3.1 · 5.5 Medium EPSS 1.0% KEV · Not listed
Vendors
Apple Canonical Oracle and 3 more
Products
Icloud Ipados Iphone Os and 14 more
CVE-2020-13434

sqlite: integer overflow in sqlite3_str_vappendf function in printf.c

SQLite through 3.32.0 has an integer overflow in sqlite3_str_vappendf in printf.c.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Apple Canonical Debian and 5 more
Products
Icloud Ipados Iphone Os and 13 more
CVE-2020-8286

curl: Inferior OCSP verification

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

CVSS 3.1 · 7.5 High EPSS 4.6% KEV · Not listed
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Products
CVE-2020-8285

curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used

curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing.

CVSS 3.1 · 7.5 High EPSS 9.8% KEV · Not listed
Vendors
Products
CVE-2020-8284

curl: FTP PASV command response can cause curl to connect to arbitrary host

A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.

CVSS 3.1 · 3.7 Low EPSS 3.9% KEV · Not listed
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Products
CVE-2019-18276

bash: when effective UID is not equal to its real UID the saved UID is not dropped

An issue was discovered in disable_priv_mode in shell.c in GNU Bash through 5.0 patch 11. By default, if Bash is run with its effective UID not equal to its real UID, it will drop privileges by setting its effective UID to its real UID. However, it does so incorrectly. On Linux and other systems that support "saved UID" functionality, the saved UID is not dropped. An attacker with command execution in the shell can use "enable -f" for runtime loading of a new builtin, which can be a shared object that calls setuid() and therefore regains privileges. However, binaries running with an effective UID of 0 are unaffected.

CVSS 3.1 · 7.8 High EPSS 2.6% KEV · Not listed
Vendors
Gnu Netapp Oracle and 1 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
CVE-2021-37159

kernel: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c

hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Linux Oracle and 1 more
CVE-2021-37136

netty-codec: Bzip2Decoder doesn't allow setting size restrictions for decompressed data

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

CVSS 3.1 · 7.5 High EPSS 5.9% KEV · Not listed
Vendors
Debian Netapp Netty and 3 more
Products
CVE-2021-33037

Incorrect Transfer-Encoding handling with HTTP/1.0

Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.

CVSS 3.1 · 5.3 Medium EPSS 74.7% KEV · Not listed
Vendors
Apache Debian Mcafee and 2 more
Products
Tomcat Tomee Debian Linux and 22 more
CVE-2021-27568

json-smart: uncaught exception may lead to crash or information disclosure

An issue was discovered in netplex json-smart-v1 through 2015-10-23 and json-smart-v2 through 2.4. An exception is thrown from a function, but it is not caught, as demonstrated by NumberFormatException. When it is not caught, it may cause programs using the library to crash or expose sensitive information.

CVSS 3.1 · 5.9 Medium EPSS 2.9% KEV · Not listed
CVE-2021-25122

Apache Tomcat h2c request mix-up

When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.

CVSS 3.1 · 7.5 High EPSS 18.1% KEV · Not listed
Vendors
Apache Debian Oracle and 1 more