curl: Libcurl ocasionally sends HTTPS traffic to port 443 rather than specified port 8080

Summary: We have encountered an issue with libcurl where, under certain network conditions, the library will attempt to submit data to an incorrect port as was set by CURLOPTPORT. As information is sent to an unauthorised port, we consider this an information disclosure issue. Our security softwa...

curl: FTP path trickery leads to NIL byte out of bounds write

It was found that libcurl did not safely parse FTP URLs when using the CURLOPTFTPFILEMETHOD method. An attacker, able to provide a specially crafted FTP URL to an application using libcurl, could write a NULL byte at an arbitrary location, resulting in a crash or an unspecified behavior...

curl: HTTP authentication leak in redirects

It was found that curl and libcurl might send their Authentication header to a third party HTTP server upon receiving an HTTP REDIRECT reply. This could leak authentication token to external entities...

A vulnerability exists in the curl_url_set() function of the libcurl library, related to integer overflow. This vulnerability allows an attacker to compromise the accessibility of the protected information.

The vulnerability in the curlurlset function of the libcurl library is related to a potential overflow condition. Exploiting this vulnerability could allow an attacker to compromise the accessibility of protected information...

Man-in-the-Middle (MitM)

libcurl.so is vulnerable to man-in-the-middle attacks. The library recognizes a wildcard IP address in the subject's Common Name CN field of an X.509 certificate. This allows a remote attacker to spoof SSL servers using malicious certifacte issued by a legitimate CA and perform a man-in-the-middl...

MAN-IN-THE-MIDDLE

libcurl.so is vulnerable to man-in-the-middle attack. A lack of validation of the TLS certificate and hostname in the mbedconnectstep1 function in lib/vtls/mbedtls.c and polarsslconnectstep1 function in lib/vtls/polarssl.c allows a remote attacker to spoof servers and perform man-in-the-middle...

[ASA-201905-13] lib32-libcurl-gnutls: arbitrary code execution

Arch Linux Security Advisory ASA-201905-13 ========================================== Severity: High Date : 2019-05-31 CVE-ID : CVE-2019-5435 CVE-2019-5436 Package : lib32-libcurl-gnutls Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-961 Summary ======= The...

[ASA-201905-14] lib32-libcurl-compat: arbitrary code execution

Arch Linux Security Advisory ASA-201905-14 ========================================== Severity: High Date : 2019-05-31 CVE-ID : CVE-2019-5435 CVE-2019-5436 Package : lib32-libcurl-compat Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-962 Summary ======= The...

[ASA-201905-11] libcurl-compat: arbitrary code execution

Arch Linux Security Advisory ASA-201905-11 ========================================== Severity: High Date : 2019-05-31 CVE-ID : CVE-2019-5436 Package : libcurl-compat Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-959 Summary ======= The package...

[ASA-201905-12] libcurl-gnutls: arbitrary code execution

Arch Linux Security Advisory ASA-201905-12 ========================================== Severity: High Date : 2019-05-31 CVE-ID : CVE-2019-5436 Package : libcurl-gnutls Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-960 Summary ======= The package...

CVE-2019-5435

An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1...

CVE-2019-5436

A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1...

DEBIAN-CVE-2019-5435

An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1...

ALPINE-CVE-2019-5435

An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1...

CVE-2019-5436

A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1...

ALPINE-CVE-2019-5436

A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1...

DEBIAN-CVE-2019-5436

A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1...

Integer overflow

An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1...

Heap overflow

A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1...

CVE-2019-5436

CVE-2019-5436 affects curl/libcurl with a heap buffer overflow in the TFTP receiving code (tftp_receive_packet). Exploitation can lead to DoS or arbitrary code execution. Upstream fix released in curl 7.65.0; advisories from CentOS, Arch Linux, Debian, and others document the vulnerability and re...