CVE-2015-8234

The image signature algorithm in OpenStack Glance 11.0.0 allows remote attackers to bypass the signature verification process via a crafted image, which triggers an MD5 collision.

Published: 2017-03-29 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-8234 is rated Moderate Risk (45/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.18%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-8234

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.32% 1.18% +0.85%
2 2026-05-07 0.13% 0.32% +0.19%
3 2026-01-21 — 0.13% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-8234

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-8234

GitHub Security Advisory for CVE-2015-8234

GHSA-wmhw-fvg9-87fc · Severity: medium · Ecosystem: pip — OpenStack Glance Signature Verification Bypass

OS Trackers for CVE-2015-8234

vendor priority summary link
debian unimportant CVE-2015-8234 unimportant priority: Debian including 1 source packages (glance), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. https://security-tracker.debian.org/tracker/CVE-2015-8234
redhat low — https://access.redhat.com/security/cve/CVE-2015-8234
ubuntu low CVE-2015-8234 low priority: Ubuntu including 1 source packages (glance), 6 status rows across 6 suites (precise, trusty, upstream, vivid, wily, xenial): not-affected 3, DNE 1, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2015-8234

Affected software / configurations for CVE-2015-8234

Vendor Product Version Raw CPE
openstack glance 11.0.0 cpe:2.3:a:openstack:glance:11.0.0:*:*:*:*:*:*:*

References for CVE-2015-8234

URL Tags
http://seclists.org/oss-sec/2015/q4/303 Mailing List Third Party Advisory
https://bugs.launchpad.net/glance/+bug/1516031 Issue Tracking Patch Third Party Advisory
https://wiki.openstack.org/wiki/OSSN/OSSN-0061 Third Party Advisory
cvelogic Threat Intelligence