computer vulnerability CVE-2010-5298

OpenSSL: data injection via OPENSSL_NO_BUF_FREELIST

Synthesis of the vulnerability

An attacker can establish a connection with a multi-thread application linked to OpenSSL with OPENSSL_NO_BUF_FREELIST, in order to potentially inject data in the session of another user.
Impacted systems: ArubaOS, ProxyAV, ProxySG par Blue Coat, SGOS by Blue Coat, Cisco ASR, Cisco ATA, Cisco ACE, ASA, AsyncOS, Cisco Catalyst, CiscoWorks, Cisco Content SMA, Cisco CSS, Cisco ESA, IOS by Cisco, IOS XE Cisco, IOS XR Cisco, Cisco IPS, IronPort Email, IronPort Management, IronPort Web, Nexus by Cisco, NX-OS, Prime Collaboration Assurance, Prime Collaboration Manager, Prime Infrastructure, Cisco PRSM, Cisco Router, Secure ACS, Cisco CUCM, Cisco Manager Attendant Console, Cisco Unified CCX, Cisco IP Phone, Cisco MeetingPlace, Cisco Wireless IP Phone, Cisco Unity ~ precise, WebNS, Cisco WSA, Debian, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, ECC, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiClient, FortiManager, FortiManager Virtual Appliance, FreeBSD, ProCurve Switch, HP Switch, AIX, Juniper J-Series, Junos OS, Junos Pulse, Juniper Network Connect, Juniper UAC, MBS, McAfee Web Gateway, NetBSD, OpenBSD, OpenSSL, openSUSE, Solaris, pfSense, Polycom CMA, HDX, RealPresence Collaboration Server, Polycom VBP, RHEL, ACE Agent, ACE Server, RSA Authentication Agent, RSA Authentication Manager, SecurID, ROS, ROX, RuggedSwitch, SIMATIC, Slackware, stunnel, Ubuntu, ESXi, vCenter Server, VMware vSphere, VMware vSphere Hypervisor.
Severity of this alert: 1/4.
Consequences of an intrusion: data reading.
Pirate's origin: internet client.
Creation date: 14/04/2014.
Revision date: 05/06/2014.
Références of this alert: 2167, aid-06062014, c04347622, CERTFR-2014-AVI-253, CERTFR-2014-AVI-254, CERTFR-2014-AVI-255, CERTFR-2014-AVI-260, CERTFR-2014-AVI-274, CERTFR-2014-AVI-279, CERTFR-2014-AVI-286, cisco-sa-20140605-openssl, CTX140876, CVE-2010-5298, DOC-53313, DSA-2908-1, FEDORA-2014-17576, FEDORA-2014-17587, FEDORA-2014-7101, FEDORA-2014-7102, FG-IR-14-018, FreeBSD-SA-14:09.openssl, HPSBHF03052, JSA10629, MDVSA-2014:090, MDVSA-2015:062, NetBSD-SA2014-006, openSUSE-SU-2014:0592-1, RHSA-2014:0625-01, RHSA-2014:0628-01, RHSA-2014:0679-01, SA40006, SA80, SB10075, SOL15328, SSA:2014-156-03, SSA-234763, USN-2192-1, VIGILANCE-VUL-14585, VMSA-2014-0006, VMSA-2014-0006.1, VMSA-2014-0006.10, VMSA-2014-0006.11, VMSA-2014-0006.2, VMSA-2014-0006.3, VMSA-2014-0006.4, VMSA-2014-0006.5, VMSA-2014-0006.6, VMSA-2014-0006.7, VMSA-2014-0006.8, VMSA-2014-0006.9.

Description of the vulnerability

The OpenSSL product uses a proprietary implementation of malloc to manage its memory.

However, when this feature is disabled with OPENSSL_NO_BUF_FREELIST, a memory area is not freed, and the ssl3_setup_read_buffer() function can, in multi-thread mode, reuse data from another SSL session.

An attacker can therefore establish a connection with a multi-threaded application linked to OpenSSL with OPENSSL_NO_BUF_FREELIST, in order to potentially inject data in the session of another user.
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