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CVE-2014-3707

Status Candidate

Overview

The curl_easy_duphandle function in libcurl 7.17.1 through 7.38.0, when running with the CURLOPT_COPYPOSTFIELDS option, does not properly copy HTTP POST data for an easy handle, which triggers an out-of-bounds read that allows remote web servers to read sensitive memory information.

Related Files

Red Hat Security Advisory 2015-2159-06
Posted Nov 20, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-2159-06 - The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. It was found that the libcurl library did not correctly handle partial literal IP addresses when parsing received HTTP cookies. An attacker able to trick a user into connecting to a malicious server could use this flaw to set the user's cookie to a crafted domain, making other cookie-related issues easier to exploit. A flaw was found in the way the libcurl library performed the duplication of connection handles. If an application set the CURLOPT_COPYPOSTFIELDS option for a handle, using the handle's duplicate could cause the application to crash or disclose a portion of its memory.

tags | advisory, web, protocol
systems | linux, redhat
advisories | CVE-2014-3613, CVE-2014-3707, CVE-2014-8150, CVE-2015-3143, CVE-2015-3148
SHA-256 | 4c8f1214c87209b025a888e27c36d8b6ff081c288e2cfca9b6e90d6d41fae18d
Apple Security Advisory 2015-08-13-2
Posted Aug 13, 2015
Authored by Apple | Site apple.com

Apple Security Advisory 2015-08-13-2 - OS X Yosemite 10.10.5 and Security Update 2015-006 is now available and addresses vulnerabilities in Apache, the OD plug-in, IOBluetoothHCIController, and more.

tags | advisory, vulnerability
systems | apple, osx
advisories | CVE-2009-5044, CVE-2009-5078, CVE-2012-6685, CVE-2013-1775, CVE-2013-1776, CVE-2013-2776, CVE-2013-2777, CVE-2013-7040, CVE-2013-7338, CVE-2013-7422, CVE-2014-0067, CVE-2014-0106, CVE-2014-0191, CVE-2014-1912, CVE-2014-3581, CVE-2014-3583, CVE-2014-3613, CVE-2014-3620, CVE-2014-3660, CVE-2014-3707, CVE-2014-7185, CVE-2014-7844, CVE-2014-8109, CVE-2014-8150, CVE-2014-8151, CVE-2014-8161, CVE-2014-8767, CVE-2014-8769
SHA-256 | 1ccd5f307af57152abb6e4f0da773ca4420fb7a6e98f26301366a9071ecc9a33
Red Hat Security Advisory 2015-1254-02
Posted Jul 22, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-1254-02 - The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. It was found that the libcurl library did not correctly handle partial literal IP addresses when parsing received HTTP cookies. An attacker able to trick a user into connecting to a malicious server could use this flaw to set the user's cookie to a crafted domain, making other cookie-related issues easier to exploit. A flaw was found in the way the libcurl library performed the duplication of connection handles. If an application set the CURLOPT_COPYPOSTFIELDS option for a handle, using the handle's duplicate could cause the application to crash or disclose a portion of its memory.

tags | advisory, web, protocol
systems | linux, redhat
advisories | CVE-2014-3613, CVE-2014-3707, CVE-2014-8150, CVE-2015-3143, CVE-2015-3148
SHA-256 | 0ed5cabcb944358c959adc7aca7eed2a6fdaaf3a1626d9b045adaa54f8d1b50f
Mandriva Linux Security Advisory 2015-098
Posted Mar 30, 2015
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2015-098 - Paras Sethia discovered that libcurl would sometimes mix up multiple HTTP and HTTPS connections with NTLM authentication to the same server, sending requests for one user over the connection authenticated as a different user. libcurl can in some circumstances re-use the wrong connection when asked to do transfers using other protocols than HTTP and FTP, causing a transfer that was initiated by an application to wrongfully re-use an existing connection to the same server that was authenticated using different credentials. Various other issues were also addressed.

tags | advisory, web, protocol
systems | linux, mandriva
advisories | CVE-2014-0015, CVE-2014-0138, CVE-2014-0139, CVE-2014-3613, CVE-2014-3620, CVE-2014-3707, CVE-2014-8150
SHA-256 | 238c9d05fcd4c3b08f5247b6e8c3855e7a760b684bb0b2f4b2fd169a52c9dffc
Mandriva Linux Security Advisory 2014-213
Posted Nov 18, 2014
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2014-213 - Symeon Paraschoudis discovered that the curl_easy_duphandle() function in cURL has a bug that can lead to libcurl eventually sending off sensitive data that was not intended for sending, while performing a HTTP POST operation. This bug requires CURLOPT_COPYPOSTFIELDS and curl_easy_duphandle() to be used in that order, and then the duplicate handle must be used to perform the HTTP POST. The curl command line tool is not affected by this problem as it does not use this sequence.

tags | advisory, web
systems | linux, mandriva
advisories | CVE-2014-3707
SHA-256 | 8c2f22fbf0bceec13557eb8ebed885169b49b44a5f993d69f6abfee0dd58fea5
Ubuntu Security Notice USN-2399-1
Posted Nov 10, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2399-1 - Symeon Paraschoudis discovered that curl incorrectly handled memory when being used with CURLOPT_COPYPOSTFIELDS and curl_easy_duphandle(). This may result in sensitive data being incorrectly sent to the remote server.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2014-3707
SHA-256 | 1a2034fba6c877540576f0bf59130ff57460fde869849e6027a5d3701378b157
Debian Security Advisory 3069-1
Posted Nov 10, 2014
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3069-1 - Symeon Paraschoudis discovered that the curl_easy_duphandle() function in cURL, an URL transfer library, has a bug that can lead to libcurl eventually sending off sensitive data that was not intended for sending, while performing a HTTP POST operation.

tags | advisory, web
systems | linux, debian
advisories | CVE-2014-3707
SHA-256 | c03b6bf995b681849b2ff96dffa2fda79c2d1a2cc8504f28055c343634166b7e
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