7.5high

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…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
6.5%
percentile 94%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

6.54% probability of exploitation in the next 30 days, higher than 94% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.07.8AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness

References

  • tenable.com /security/tns-2016-20 · x_refsource_CONFIRM, x_transferred
  • oracle.com /technetwork/security-advisory/cpujul2018-4258247.html · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/06/04/4 · mailing-list, x_refsource_MLIST, x_transferred
  • debian.org /security/2016/dsa-3597 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • oracle.com /technetwork/topics/security/bulletinjul2016-3090568.html · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/91159 · vdb-entry, x_refsource_BID, x_transferred
  • security.gentoo.org /glsa/201701-21 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • source.android.com /security/bulletin/2016-11-01.html · x_refsource_CONFIRM, x_transferred
  • ubuntu.com /usn/USN-3010-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • openwall.com /lists/oss-security/2016/06/04/5 · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkee · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkee · mailing-list, x_refsource_MLIST, x_transferred
  • kc.mcafee.com /corporate/index?page=content&id=SB10365 · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.