Buffer overflow in Squid-Cache Squid
CVE-2016-3947
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.146 (96.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.146 · newest: 0.146 · change: 0.000
Affected products
- Squid-Cache Squid — versions 4.0.1, 4.0.2, 4.0.3
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
Weakness classification (CWE)
References
- www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14015.patch (Patch)
- security.gentoo.org/glsa/201607-01 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html (vendor-advisory)
- www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11839.patch (US Government Resource, Patch, Third Party Advisory)
- www.squid-cache.org/Advisories/SQUID-2016_3.txt (Vendor Advisory)
- www.ubuntu.com/usn/USN-2995-1 (vendor-advisory)
- www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10495.patch (Patch)
- www.securitytracker.com/id/1035457 (vdb-entry)
- lists.opensuse.org/opensuse-updates/2016-08/msg00069.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html (vendor-advisory)
Frequently asked questions
- What is CVE-2016-3947?
- CVE-2016-3947 is a high-severity vulnerability in Squid-Cache Squid, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.2/10. Published 2016-04-07.
- How severe is CVE-2016-3947?
- High severity. CVSS v3 base score is 8.2 out of 10.