Integer overflow in Memcached
CVE-2016-8704
An integer overflow in the process_bin_append_prepend function in Memcached, which is responsible for processing multiple commands of Memcached binary protocol, can be abused to cause heap overflow and lead to remote code execution.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.232 (97.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.232 · newest: 0.232 · change: 0.000
Affected products
- Memcached — versions 1.4.31
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.gentoo.org/glsa/201701-12 (vendor-advisory)
- www.debian.org/security/2016/dsa-3704 (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2016-2819.html (vendor-advisory)
- www.securityfocus.com/bid/94083 (vdb-entry)
- rhn.redhat.com/errata/RHSA-2016-2820.html (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:0059 (vendor-advisory)
- www.securitytracker.com/id/1037333 (vdb-entry)
- www.talosintelligence.com/reports/TALOS-2016-0219/ (Technical Description, Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-8704?
- CVE-2016-8704 is a critical-severity vulnerability in Memcached, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-01-06.
- How severe is CVE-2016-8704?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-8704 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.