CVE-2016-4556
critical-risk
Published 2016-05-10
Double free vulnerability in Esi.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via a crafted Edge Side Includes (ESI) response.
Do I need to act?
!
56.9% chance of exploitation in next 30 days
EPSS score — higher than 43% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (32)
Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/06/3
Release Notes
http://www.openwall.com/lists/oss-security/2016/05/06/5
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h...
Third Party Advisory
http://www.securitytracker.com/id/1035770
Vendor Advisory
http://www.squid-cache.org/Advisories/SQUID-2016_9.txt
Third Party Advisory
http://www.ubuntu.com/usn/USN-2995-1
and 12 more references
77
/ 100
critical-risk
Severity
26/34 · High
Exploitability
18/34 · Moderate
Exposure
33/34 · Critical