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CVE-2016-5420

Status Candidate

Overview

curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which might allow remote attackers to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate.

Related Files

Red Hat Security Advisory 2018-3558-01
Posted Nov 13, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3558-01 - The Apache HTTP Server is a powerful, efficient, and extensible web server. The httpd24 packages provide a recent stable release of version 2.4 of the Apache HTTP Server, along with the mod_auth_kerb module. Issues addressed include buffer overflow, bypass, denial of service, heap overflow, null pointer, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, web, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-5419, CVE-2016-5420, CVE-2016-5421, CVE-2016-7141, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619, CVE-2016-8620, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624, CVE-2016-8625, CVE-2016-9586, CVE-2017-1000100, CVE-2017-1000101, CVE-2017-1000254, CVE-2017-1000257, CVE-2017-15710, CVE-2017-15715, CVE-2017-7407, CVE-2017-8816, CVE-2017-8817, CVE-2018-1000007
MD5 | 516f51a00fc5765270c849817fc3f4b4
Gentoo Linux Security Advisory 201701-47
Posted Jan 20, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201701-47 - Multiple vulnerabilities have been found in cURL, the worst of which could allow remote attackers to execute arbitrary code. Versions less than 7.52.1 are affected.

tags | advisory, remote, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2014-8150, CVE-2014-8151, CVE-2016-0755, CVE-2016-3739, CVE-2016-5419, CVE-2016-5420, CVE-2016-5421, CVE-2016-7141, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619, CVE-2016-8620, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624, CVE-2016-8625, CVE-2016-9586, CVE-2016-9594
MD5 | e9977d9e331b08e39be999454888496b
Apple Security Advisory 2016-12-13-1
Posted Dec 14, 2016
Authored by Apple | Site apple.com

Apple Security Advisory 2016-12-13-1 - macOS 10.12.2 is now available and addresses arbitrary code execution, denial of service, and various other vulnerabilities.

tags | advisory, denial of service, arbitrary, vulnerability, code execution
systems | apple
advisories | CVE-2016-1777, CVE-2016-1823, CVE-2016-4688, CVE-2016-4691, CVE-2016-4693, CVE-2016-5419, CVE-2016-5420, CVE-2016-5421, CVE-2016-6303, CVE-2016-6304, CVE-2016-7141, CVE-2016-7167, CVE-2016-7411, CVE-2016-7412, CVE-2016-7413, CVE-2016-7414, CVE-2016-7416, CVE-2016-7417, CVE-2016-7418, CVE-2016-7588, CVE-2016-7591, CVE-2016-7594, CVE-2016-7595, CVE-2016-7596, CVE-2016-7600, CVE-2016-7602, CVE-2016-7603, CVE-2016-7604
MD5 | 43849fd460fd7f718d2448fb66786491
Red Hat Security Advisory 2016-2575-02
Posted Nov 3, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2575-02 - The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fix: It was found that the libcurl library did not prevent TLS session resumption when the client certificate had changed. An attacker could potentially use this flaw to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate.

tags | advisory, web, protocol
systems | linux, redhat
advisories | CVE-2016-5419, CVE-2016-5420, CVE-2016-7141
MD5 | 72fe7633c44c715d71056156ed47d194
Ubuntu Security Notice USN-3048-1
Posted Aug 8, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3048-1 - Bru Rom discovered that curl incorrectly handled client certificates when resuming a TLS session. It was discovered that curl incorrectly handled client certificates when reusing TLS connections. Marcelo Echeverria and Fernando Munoz discovered that curl incorrectly reused a connection struct, contrary to expectations. This issue only applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. Various other issues were also addressed.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2016-5419, CVE-2016-5420, CVE-2016-5421
MD5 | 8478a0cb2fdfc808f25d985719b90819
Slackware Security Advisory - curl Updates
Posted Aug 8, 2016
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New curl packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2016-5419, CVE-2016-5420, CVE-2016-5421
MD5 | 48a695f416845c7d906ac5dfc64c4706
Debian Security Advisory 3638-1
Posted Aug 3, 2016
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3638-1 - Several vulnerabilities were discovered in cURL, an URL transfer library.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2016-5419, CVE-2016-5420, CVE-2016-5421
MD5 | 7d28581e007003edd5252d98d98fd4ce
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