Published: 26/09/2016 Updated: 07/11/2023

CVSS v2 Base Score: 10 | Impact Score: 10 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 899

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote malicious users to cause a denial of service (use-after-free) or possibly execute arbitrary code via a crafted TLS session.

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openssl openssl 1.1.0a

statem/statemc in OpenSSL 110a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a denial of service (use-after-free) or possibly execute arbitrary code via a crafted TLS session ...

The patch applied to address CVE-2016-6307 resulted in an issue where if a message larger than approx 16k is received then the underlying buffer to store the incoming message is reallocated and moved Unfortunately a dangling pointer to the old location is left which results in an attempt to write to the previously freed location This is likely to ...

On September 22, 2016, the OpenSSL Software Foundation released an advisory that describes 14 vulnerabilities Of these 14 vulnerabilities, the OpenSSL Software Foundation classifies one as “Critical Severity,” one as “Moderate Severity,” and the other 12 as “Low Severity” Subsequently, on September 26, the OpenSSL Software Foundatio ...

Nessus is potentially impacted by several vulnerabilities in OpenSSL (20160926) that were recently disclosed and fixed Note that due to the time involved in doing a full analysis of each issue, Tenable has opted to upgrade the included version of OpenSSL as a precaution, and to save time These vulnerabilities may impact Nessus and include: CVE-2 ...

Tenable's Passive Vulnerability Scanner (PVS) uses third-party libraries to provide certain standardized functionality Four of these libraries were found to contain vulnerabilities and were fixed upstream Those fixes have been integrated despite there being no known exploitation scenarios related to PVS OpenSSL ssl/statem/statemc read_state_ma ...

Patch AGAIN: OpenSSL security fixes now need their own security fixes

The Register • Team Register • 26 Sep 2016

Recursion (n): See recursion

Sysadmins and devs, fresh from a weekend spoiled by last week's OpenSSL emergency patch, have another emergency patch to install. One of last week's fixes, for CVE-2016-6307, created CVE-2016-6309, a dangling pointer security vulnerability. As the fresh advisory states: “The patch applied to address CVE-2016-6307 resulted in an issue where if a message larger than approx 16k is received, then the underlying buffer to store the incoming message is reallocated and moved. “Unfortunately a dangl...

CVE-2016-6309

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