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Fencer Intel
high 7.5

CVE-2016-0737 json

OpenStack Object Storage (Swift) allows remote attackers to cause a denial of service

published 2016-01-29 10 y ago modified 2026-07-07 4 mo ago also GHSA-972c-cfv8-2hq8 , PYSEC-2026-929 , EUVD-2022-3307

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

OpenStack Object Storage (Swift) before 2.4.0 does not properly close client connections, which allows remote attackers to cause a denial of service (proxy-server resource consumption) via a series of interrupted requests to a Large Object URL.

Patch / fix

  • pypi swift 2.4.0
  • swift Debian 14, Debian 13, Debian 12 2.4.0-1

debian advisories DEBIAN-CVE-2016-0737

  • swift Ubuntu 14.04 LTS 1.13.1-0ubuntu1.5

ubuntu advisories UBUNTU-CVE-2016-0737

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openstack-swift storage 3.1, openstack 5 1.13.1-8.el6ost
  • openstack-swift-proxy storage 3.1, openstack 5 1.13.1-8.el6ost
  • openstack-swift-object storage 3.1, openstack 5 1.13.1-8.el6ost
  • openstack-swift-account storage 3.1, openstack 5 1.13.1-8.el6ost
  • openstack-swift-container storage 3.1, openstack 5 1.13.1-8.el6ost
  • openstack-swift storage 3.1, openstack 5 1.13.1-8.el7ost
  • openstack-swift-proxy storage 3.1, openstack 5 1.13.1-8.el7ost
  • openstack-swift-object storage 3.1, openstack 5 1.13.1-8.el7ost

red hat advisories RHSA-2016:0126RHSA-2016:0127RHSA-2016:0328RHSA-2016:0329RHSA-2016:0128RHSA-2016:0155

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-0737 updated cvss 6.8

openstack-swift: Client to proxy DoS through Large Objects

  • Red Hat OpenStack Platform 13 (Queens) python-swift, python-swift-tests, openstack-swift-proxy, openstack-swift-object, openstack-swift-account, openstack-swift-container Red Hat OpenStack Platform 16.2 python3-swift, openstack-swift, openstack-swift-proxy, openstack-swift-object, openstack-swift-account, openstack-swift-container Red Hat OpenStack Platform 17.1 python3-swift, openstack-swift, openstack-swift-proxy, openstack-swift-object, openstack-swift-account, openstack-swift-container
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 openstack-swift 1.13.1-8.el6ost, openstack-swift-proxy 1.13.1-8.el6ost, openstack-swift-object 1.13.1-8.el6ost, openstack-swift-account 1.13.1-8.el6ost, openstack-swift-container 1.13.1-8.el6ost
    fixed: vendor fix RHSA-2016:0126
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 openstack-swift 1.13.1-8.el7ost, openstack-swift-proxy 1.13.1-8.el7ost, openstack-swift-object 1.13.1-8.el7ost, openstack-swift-account 1.13.1-8.el7ost, openstack-swift-container 1.13.1-8.el7ost
    fixed: vendor fix RHSA-2016:0127
  • Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 openstack-swift 2.2.0-6.el7ost, openstack-swift-proxy 2.2.0-6.el7ost, openstack-swift-object 2.2.0-6.el7ost, openstack-swift-account 2.2.0-6.el7ost, openstack-swift-container 2.2.0-6.el7ost
    fixed: vendor fix RHSA-2016:0128
  • Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 openstack-swift 2.3.0-3.el7ost, openstack-swift-proxy 2.3.0-3.el7ost, openstack-swift-object 2.3.0-3.el7ost, openstack-swift-account 2.3.0-3.el7ost, openstack-swift-container 2.3.0-3.el7ost
    fixed: vendor fix RHSA-2016:0155
  • Red Hat Gluster Storage Server 3.1 on RHEL-6 openstack-swift 1.13.1-8.el6ost, openstack-swift-proxy 1.13.1-8.el6ost, openstack-swift-object 1.13.1-8.el6ost, openstack-swift-account 1.13.1-8.el6ost, openstack-swift-container 1.13.1-8.el6ost
    fixed: vendor fix RHSA-2016:0329
  • Red Hat Gluster Storage Server 3.1 on RHEL-7 openstack-swift 1.13.1-8.el7ost, openstack-swift-proxy 1.13.1-8.el7ost, openstack-swift-object 1.13.1-8.el7ost, openstack-swift-account 1.13.1-8.el7ost, openstack-swift-container 1.13.1-8.el7ost
    fixed: vendor fix RHSA-2016:0328
  • Red Hat OpenStack Platform 8 (Liberty) openstack-swift, openstack-swift-proxy, openstack-swift-object, openstack-swift-account, openstack-swift-container Red Hat OpenStack Platform 18.0 openstack-swift
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.92% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
pypi swift
<2.4.0
2.4.0

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.