libcurl-compat

A logic flaw has been found in cURL before 8.4.0, which allows an attacker to insert cookies at will into a running program using libcurl, if the specific...

A heap-based buffer overflow has been found in the SOCKS5 proxy handshake component of cURL before 8.4.0.

A STARTTLS protocol injection flaw via man-in-the-middle was found in curl before 7.79.0. When curl connects to an IMAP, POP3, SMTP or FTP server to...

A security issue was found in curl before 7.79.0. A user can tell curl to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server...

A use-after-free security issue has been found in the MQTT sending component of curl before 7.79.0. When sending data to an MQTT server, libcurl could in...

A security issue has been found in curl before version 7.78.0. curl supports the -t command line option, known as CURLOPT_TELNETOPTIONS in libcurl. This...

A security issue has been found in curl before version 7.78.0. libcurl keeps previously used connections in a connection pool for subsequent transfers to...

libcurl before version 7.77.0 can be tricked into using already freed memory when a new TLS session is negotiated or a client certificate is requested on an...

A security issue has been found in curl before version 7.77.0. curl supports the -t command line option, known as CURLOPT_TELNETOPTIONS in libcurl. This...

Enabled by default, libcurl supports the use of TLS 1.3 session tickets to resume previous TLS sessions to speed up subsequent TLS handshakes.  When using a...

libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and...

libcurl before 7.65.0 contains a heap buffer overflow in the function (tftp_receive_packet()) that receives data from a TFTP server. It calls recvfrom()...

curl >= 7.20.0 and < 7.60.0 can be tricked into reading data beyond the end of a heap based buffer used to store downloaded content. When servers send RTSP...

curl >= 7.54.1 and < 7.60.0 might overflow a heap based memory buffer when closing down an FTP connection with very long server command replies. When doing...

A buffer over-read exists in curl >= 7.20.0 and < 7.59.0 in the RTSP+RTP handling code that allows an attacker to cause a denial of service or information...

A NULL pointer dereference exists in the LDAP code of curl >= 7.21.0 and < curl 7.59.0, allowing an attacker to cause a denial of service. libcurl-using...

It was found that libcurl did not safely parse FTP URLs when using the CURLOPT_FTP_FILEMETHOD method. An attacker, able to provide a specially crafted FTP...

libcurl might leak authentication data to third parties. When asked to send custom headers in its HTTP requests, libcurl will send that set of headers first...

libcurl contains an out bounds read in code handling HTTP/2 trailers. It was reported that reading an HTTP/2 trailer could mess up future trailers since the...

A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up...

It has been discovered that curl before 7.61.0 might overflow a heap based memory buffer when sending data over SMTP and using a reduced read buffer.  When...

A heap buffer overrun flaw was found in the IMAP handler of libcurl >= 7.20.0 and < 7.56.1. An IMAP FETCH response line indicates the size of the returned...

When libcurl connects to an FTP server and successfully logs in (anonymous or not), it asks the server for the current directory with the `PWD` command. The...

An information disclosure issue has been found in curl < 7.55.0. When doing a TFTP transfer and curl/libcurl is given a URL that contains a very long file...

An information disclosure issue has been found in curl < 7.55.0. When asking to get a file from a file:// URL, libcurl provides a feature that outputs...

An out-of-bounds flaw has been found in the SSL related code of libcurl >= 7.56.0 and < 7.57.0. When allocating memory for a connection (the internal struct...

A read out of bounds flaw has been found in the FTP wildcard function of libcurl >= 7.21.0 and < 7.57.0. libcurl's FTP wildcard matching feature, which is...

A buffer overrun flaw has been found in libcurl > 7.15.4 and < 7.57.0, in the NTLM authentication code. The internal function...

libcurl from 7.52.0 to and including 7.53.1 would attempt to resume a TLS session even if the client certificate had changed. That is unacceptable since a...

A coding error has been found in curl >= 7.52.0 and < 7.53.0, causing the TLS Certificate Status Request extension check to always return true. curl and...

libcurl's (new) internal function that returns a good 32bit random value was implemented poorly and overwrote the pointer instead of writing the value into...

libcurl's implementation of the printf() functions triggers a buffer overflow when doing a large floating point output. The bug occurs when the conversion...

When curl is built with libidn to handle International Domain Names (IDNA), it translates them to puny code for DNS resolving using the IDNA 2003 standard,...

curl doesn't parse the authority component of the URL correctly when the host name part ends with a '#' character, and could instead be tricked into...

libcurl explicitly allows users to share cookies between multiple easy handles that are concurrently employed by different threads. When cookies to be sent...

The URL percent-encoding decode function in libcurl is called curl_easy_unescape. Internally, even if this function would be made to allocate a unscape...

The curl_getdate converts a given date string into a numerical timestamp and it supports a range of different formats and possibilites to express a date and...

In curl's implementation of the Kerberos authentication mechanism, the function read_data() in security.c is used to fill the necessary krb5 structures....

In libcurl's base64 encode function, the output buffer is allocated as follows without any checks on insize:  malloc( insize * 4 / 3 + 4 ) On systems with...

When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections.  This means that if an...

If cookie state is written into a cookie jar file that is later read back and used for subsequent requests, a malicious HTTP server can inject new cookies...