CVE-2016-5300

The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.

• CWE-399

• http://www.debian.org/security/2016/dsa-3597Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/06/04/4Mailing List
• http://www.openwall.com/lists/oss-security/2016/06/04/5Mailing List
• http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlPatch, Third Party Advisory
• http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
• http://www.securityfocus.com/bid/91159Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-3010-1Third Party Advisory
• https://kc.mcafee.com/corporate/index?page=content&id=SB10365
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://security.gentoo.org/glsa/201701-21Third Party Advisory
• https://source.android.com/security/bulletin/2016-11-01.htmlThird Party Advisory
• https://www.tenable.com/security/tns-2016-20Third Party Advisory
• http://www.debian.org/security/2016/dsa-3597Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/06/04/4Mailing List
• http://www.openwall.com/lists/oss-security/2016/06/04/5Mailing List
• http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlPatch, Third Party Advisory
• http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
• http://www.securityfocus.com/bid/91159Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-3010-1Third Party Advisory
• https://kc.mcafee.com/corporate/index?page=content&id=SB10365
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://security.gentoo.org/glsa/201701-21Third Party Advisory
• https://source.android.com/security/bulletin/2016-11-01.htmlThird Party Advisory
• https://www.tenable.com/security/tns-2016-20Third Party Advisory

Published

Jun 16, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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