5.9med

CVE-2016-6307

The state-machine implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
5.9
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
13.8%
percentile 97%
Public exploits
0
none known

Summary

The state-machine implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow remote attackers to cause a denial of service (memory consumption) via crafted TLS messages, related to statem/statem.c and statem/statem_lib.c.

Exploit prediction (EPSS)

13.84% probability of exploitation in the next 30 days, higher than 97% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
Technology feeds
OpenSSL (RSS, critical only)

References

  • openssl.org /news/secadv/20160922.txt · x_transferred
  • tenable.com /security/tns-2016-20 · x_transferred
  • oracle.com /technetwork/security-advisory/cpujan2018-3236628.html · x_transferred
  • www-01.ibm.com /support/docview.wss?uid=swg21995039 · x_transferred
  • securitytracker.com /id/1036885 · vdb-entry, x_transferred
  • oracle.com /technetwork/security-advisory/cpuoct2016-2881722.html · x_transferred
  • tenable.com /security/tns-2016-16 · x_transferred
  • tenable.com /security/tns-2016-21 · x_transferred
  • oracle.com /technetwork/security-advisory/cpuoct2017-3236626.html · x_transferred
  • oracle.com /technetwork/security-advisory/cpuapr2018-3678067.html · x_transferred
  • bto.bluecoat.com /security-advisory/sa132 · x_transferred
  • oracle.com /technetwork/security-advisory/cpujul2017-3236622.html · x_transferred
  • securityfocus.com /bid/93152 · vdb-entry, x_transferred
  • git.openssl.org /?p=openssl.git%3Ba=commit%3Bh=4b390b6c3f8df925dc92a3dd6b022baa9a2f4650 · x_transferred
  • kb.juniper.net /InfoCenter/index?page=content&id=JSA10759 · x_transferred
  • cert-portal.siemens.com /productcert/pdf/ssa-412672.pdf · 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.