High severity8.2NVD Advisory· Published Apr 7, 2016· Updated Jun 17, 2026
CVE-2016-3947
CVE-2016-3947
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
18cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*range: <=3.5.15
- cpe:2.3:a:squid-cache:squid:4.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.7:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*+ 3 more
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- osv-coords5 versionspkg:rpm/opensuse/squid&distro=openSUSE%20Tumbleweedpkg:rpm/suse/squid3&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/squid3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1
< 4.16-1.5+ 4 more
- (no CPE)range: < 4.16-1.5
- (no CPE)range: < 3.1.23-8.16.30.1
- (no CPE)range: < 3.1.23-8.16.30.1
- (no CPE)range: < 3.3.14-20.2
- (no CPE)range: < 3.3.14-20.2
Patches
Vulnerability mechanics
References
12- www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10495.patchnvdPatch
- www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11839.patchnvdPatchThird Party AdvisoryUS Government Resource
- www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12694.patchnvdPatch
- www.squid-cache.org/Versions/v3/3.4/changesets/squid-3.4-13232.patchnvdPatch
- www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14015.patchnvdPatch
- www.squid-cache.org/Advisories/SQUID-2016_3.txtnvdVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.htmlnvd
- lists.opensuse.org/opensuse-updates/2016-08/msg00069.htmlnvd
- www.securitytracker.com/id/1035457nvd
- www.ubuntu.com/usn/USN-2995-1nvd
- security.gentoo.org/glsa/201607-01nvd
News mentions
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