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Vulnerability record · CVE-2016-5300 · published 16 June 2016

CVE-2016-5300: Canonical ubuntu linux vulnerability

Canonical · Ubuntu Linux

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.

7.5 CVSS 3.0 High EPSS 6.5% · top 6.4% CWE-399 · CWE-399
7.5CVSS 3.0 base score, v2 7.8
6.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
26References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2016-5300), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.