CVE Vulnerability Catalog

When libcurl uses libssh2 with a hashed known_hosts file, an unrelated initial entry can cause host key validation to report a key mismatch as a missing key to the CURLOPT_SSH_KEYFUNCTION callback.

An authenticated HTTPS origin can supply an HSTS max-age value that the parser accepts, but time serialization later fails to process. On 64-bit systems, extreme max-age values compute an absolute expiry within standard time integer limits that exceeds calendar time structure bounds.

When writing a long cookie name and value to a Netscape cookie jar, a remote HTTP server can make curl write a record that exceeds its line-length parsing limit. Consequently, any subsequent curl invocation reading from that same cookie jar using --cookie will silently abort parsing prematurely.

A HTTP proxy can trick libcurl into sending the origin's credentials (Basic password, or a Negotiate/Kerberos ticket) to the proxy itself, by answering the CONNECT tunnel request with 401 WWW-Authenticate instead of the expected 407 Proxy-Authenticate.

When an FTP wildcard LIST operation fails, libcurl omits the restoration path meant for successful listings, leaving the write callback set to the internal listing parser and the write callback data pointing directly to the easy handle. Subsequent reuse of this handle triggers an immediate crash.

A deeply nested multipart MIME structure constructed via the public API causes a stack overflow in libcurl during normal cleanup operations. An excessive recursion depth within curl_mime_free leads to unbounded stack frame allocation during structure traversal, ultimately crashing the host process.

By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured transfer timeout mechanism, indefinitely blocking all concurrent transfers bound to the same multi-handle.

A remote HTTP server can set a cookie that curl accepts and writes to a Netscape cookie jar but cannot reload. On the next invocation using the same path for --cookie and --cookie-jar, curl fails before connecting, then the cleanup procedure replaces the jar with an empty file, deleting cookies.

libcurl could accidentally return a URL for curl_easy_getinfo's CURLINFO_EFFECTIVE_URL option containing credentials, even though neither the URL provided to libcurl nor the redirected URL did. The curl tool exposes the same information using the command line option --write-out '%{url_effective}'.

When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when gnutls_record_send() returns a number of bytes sent greater than the number of bytes it was given to send.

When CURLOPT_INTERFACE (or the command line tool's --interface option) is set with one of the documented prefixes (if!, host!, ifhost!), that binding is not part of the connection reuse key, so a later transfer asking for a different source can silently reuse an existing connection.

Enabling CURLOPT_CRLF causes curl to advertise the raw input byte count in the IMAP APPEND {N} literal while transmitting line-ending expanded data. The server reads only N bytes for the payload, causing the remaining overflow bytes to be interpreted and executed as pipelined IMAP commands.

The vulnerability in GraphQL::Language::Cache#fetch reads parser cache files and passes their contents directly to Marshal.load without authenticating the payloads. If an attacker can place a crafted payload in the expected path and the application calls GraphQL::Language::Parser.parse_file, arbitrary code execution may occur.

In the Linux kernel, a null pointer dereference occurs due to a race between smmu driver probe and client driver probe, when of_dma_configure() for client is called after the iommu_device_re.

Sudo VISudo version 1.6.8 and earlier allows local users to corrupt arbitrary files via a symlink attack on temporary files.

A flaw was found in Poppler's Pdfinfo utility. Using the -dests parameter with a malformed input file can cause the utility to crash.

Vulnerability in CUPS printing system versions 2.4.8 and earlier. When starting the cupsd server with a Listen configuration pointing to a symbolic link, the process can perform an arbitrary chmod on the target file.

A timing side-channel in ECDSA signature computations could potentially allow recovering the private key by an attacker. Measuring timing could lead to private key recovery.

A flaw was found in the OpenJPEG project where a heap buffer overflow condition may be triggered when certain options are specified while using the opj_decompress utility. This can lead to an application crash or other undefined behavior.

Netplan leaks the private key of WireGuard to local users. Versions after 1.0 are not affected.