CVE-2016-4556

Home/CVE/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 de

CVE

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 de

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.

HIGH · CVSS 7.5 EPSS 0.56857

Act now

EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
EPSS percentile: top 2% of all CVEs by exploitation likelihood
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

▤

Affected Products & Versions

squid-cache squidall versions

▣

Scoring & Timeline

7.5

HIGH · CVSS v3.0 · cve@mitre.org

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD10 May 2016 · 07:59 PM

CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

⚑

Vendor Advisories

suse-csafSUSE-SU-2016:2089-1
suse-csafSUSE-SU-2016:2008-1
usnUSN-2995-1
rhsaRHSA-2016:1140Moderate
rhsaRHSA-2016:1139Moderate
Show all 6 vendor advisoriesrhsaRHSA-2016:1138Moderate

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html

http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html

http://www.debian.org/security/2016/dsa-3625

http://www.openwall.com/lists/oss-security/2016/05/06/3Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/05/06/5Release NotesThird Party Advisory

Show all 13 references

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory

http://www.securitytracker.com/id/1035770Third Party Advisory

http://www.squid-cache.org/Advisories/SQUID-2016_9.txtVendor Advisory

http://www.squid-cache.org/Versions/v3/3.4/changesets/SQUID-2016_9.patch

http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_9.patchPatch

http://www.ubuntu.com/usn/USN-2995-1Third Party Advisory

https://security.gentoo.org/glsa/201607-01

Intelligence Graph · click any node to traverse

CVETechnique ActorTool Family

drag to reposition · click any node to traverse · button top-right enlarges

External lookups - second-class, for what we don’t hold ourselves

NVD CVE.org CISA Vulners Exploit-DB GitHub PoC VulnCheck KEV GreyNoise

Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities

Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs

Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures

Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1

About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service

threatengine.sh · Open-source threat intelligence platform · 100+ authoritative sources · Every fact traces to its origin