Resource exhaustion in Ceph
CVE-2020-1700
A flaw was found in the way the Ceph RGW Beast front-end handles unexpected disconnects. An authenticated attacker can abuse this flaw by making multiple disconnect attempts resulting in a permanent leak of a socket connection by radosgw. This flaw could lead to a denial of service condition by pile up of CLOSE_WAIT sockets, eventually leading to the exhaustion of available resources, preventing legitimate users from connecting to the system.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.024 · change: -0.001
Affected products
- Ceph
- [Unknown] Ceph — versions 14.2.4-125.el8cp, 14.2.4-51.el7cp
- Canonical Ubuntu Linux — versions 18.04, 19.10
- openSUSE Leap — versions 15.1
- Red Hat Openshift Container Storage — versions 4.2
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- lists.opensuse.org/opensuse-security-announce/2020-02/msg00009.html (vendor-advisory, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4304-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00034.html (mailing-list)
Frequently asked questions
- What is CVE-2020-1700?
- CVE-2020-1700 is a medium-severity vulnerability in Ceph, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2020-02-07.
- How severe is CVE-2020-1700?
- Medium severity. CVSS v3 base score is 6.5 out of 10.