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CVE-2016-0738

24
FAUCET Score

CVE-2016-0738 describes a denial-of-service vulnerability in OpenStack Object Storage (Swift) versions prior to 2.3.1 (Kilo), 2.4.x, and 2.5.x before 2.5.1 (Liberty). The flaw stems from improper handling of server connections, allowing remote attackers to exhaust proxy-server resources through interrupted requests to Large Object URLs. This vulnerability carries a CVSSv3 score of 7.5 (High), indicating a network-based attack with low complexity and high impact on availability, requiring no user interaction or privileges. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3.0CPE matchmatch criteria
cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:openstack:swift:2.4.0:*:*:*:*:*:*:*
2.5.0CPE matchmatch criteria
cpe:2.3:a:openstack:swift:2.5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.82%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0382 is in the 80th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

pippatch availablevia ghsa
Product: swiftFixed in: 2.3.1
pippatch availablevia ghsa
Product: swiftFixed in: 2.5.1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7Fixed in: openstack-swift-0:1.13.1-8.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7Fixed in: openstack-swift-0:2.2.0-6.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7Fixed in: openstack-swift-0:2.3.0-3.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.1 for RHEL 6Fixed in: openstack-swift-0:1.13.1-8.el6ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.1 for RHEL 7Fixed in: openstack-swift-0:1.13.1-8.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6Fixed in: openstack-swift-0:1.13.1-8.el6ost
View patch
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

pipGHSA-fxwr-2vxm-cg7phigh

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

May 17, 2022
redhatCVE-2016-0738Moderate

openstack-swift: Proxy to server DoS through Large Objects

Jan 20, 2016

References

lists.fedoraproject.org / pipermail/package-announce/2016-February/176713.html
rhn.redhat.com / errata/RHSA-2016-0128.html
rhn.redhat.com / errata/RHSA-2016-0155.html
rhn.redhat.com / errata/RHSA-2016-0329.html
bugs.launchpad.net / cloud-archive/+bug/1493303
Vendor Advisory
github.com / openstack/swift/blob/master/CHANGELOG
Vendor Advisory
security.openstack.org / ossa/OSSA-2016-004.html
PatchVendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
securityfocus.com / bid/81432