Critical severity · published Sep 26, 2016
CVE-2016-6309
statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a denial of service (use-after-free) or…
9.8
CVSS
70.2%
EPSS
No
On KEV
Description
statem/statem.c in OpenSSL 1.1.0a 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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)70.2% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openssl · Openssl
1.1.0a · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6309
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6309
kb.juniper.net
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
www-01.ibm.com
http://www-01.ibm.com/support/docview.wss?uid=swg21995039
www.oracle.com
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
www.oracle.com
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
www.oracle.com
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
www.oracle.com
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
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