Read the docs
TI-2016-03353 Aliases CVE-2016-3947GHSA-59fp-mgp3-qph8

Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger…

Priority MEDIUM 51CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger utility in Squid before 3.5.16 and 4.x before 4.0.8 allows remote servers to cause a denial of service (performance degradation or transition failures) or write sensitive information to log files via an ICMPv6 packet.

Why it matters now

EPSS 0.1462 96th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*up to 3.5.15Vulnerablesquid-cache
cpe:2.3:a:squid-cache:squid:4.0.1:*:*:*:*:*:*:*4.0.1Vulnerablesquid-cache
cpe:2.3:a:squid-cache:squid:4.0.2:*:*:*:*:*:*:*4.0.2Vulnerablesquid-cache
cpe:2.3:a:squid-cache:squid:4.0.3:*:*:*:*:*:*:*4.0.3Vulnerablesquid-cache
cpe:2.3:a:squid-cache:squid:4.0.4:*:*:*:*:*:*:*4.0.4Vulnerablesquid-cache
cpe:2.3:a:squid-cache:squid:4.0.5:*:*:*:*:*:*:*4.0.5Vulnerablesquid-cache
cpe:2.3:a:squid-cache:squid:4.0.6:*:*:*:*:*:*:*4.0.6Vulnerablesquid-cache
cpe:2.3:a:squid-cache:squid:4.0.7:*:*:*:*:*:*:*4.0.7Vulnerablesquid-cache
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*12.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
  • cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* Versions up to 3.5.15 Vulnerable ·squid-cache
  • cpe:2.3:a:squid-cache:squid:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·squid-cache
  • cpe:2.3:a:squid-cache:squid:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·squid-cache
  • cpe:2.3:a:squid-cache:squid:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·squid-cache
  • cpe:2.3:a:squid-cache:squid:4.0.4:*:*:*:*:*:*:* Versions 4.0.4 Vulnerable ·squid-cache
  • cpe:2.3:a:squid-cache:squid:4.0.5:*:*:*:*:*:*:* Versions 4.0.5 Vulnerable ·squid-cache
  • cpe:2.3:a:squid-cache:squid:4.0.6:*:*:*:*:*:*:* Versions 4.0.6 Vulnerable ·squid-cache
  • cpe:2.3:a:squid-cache:squid:4.0.7:*:*:*:*:*:*:* Versions 4.0.7 Vulnerable ·squid-cache
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*15.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
  • cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-3947
  2. 2026-10-03 Alias added: GHSA-59fp-mgp3-qph8

References

Patch 5

Advisory 6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences