HOMEVULNERABILITIESCVE-2017-6505
MEDIUM

CVE-2017-6505

CWE-835Published: March 15, 2017· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

The ohci_service_ed_list function in hw/usb/hcd-ohci.c in QEMU (aka Quick Emulator) before 2.9.0 allows local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors, a different vulnerability than CVE-2017-9330.

NVD Source

Technical Analysis

CVE-2017-6505 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeChanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected Vendors & Products

qemu1 product(s)
qemu
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://www.openwall.com/lists/oss-security/2017/03/06/6
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1429432
PATCHhttp://www.openwall.com/lists/oss-security/2017/03/06/6
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1429432
ADVISORYhttp://www.securityfocus.com/bid/96611
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
ADVISORYhttps://security.gentoo.org/glsa/201704-01
ADVISORYhttp://www.securityfocus.com/bid/96611
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
ADVISORYhttps://security.gentoo.org/glsa/201704-01

All References (12)

→
http://git.qemu-project.org/?p=qemu.git%3Ba=commitdiff%3Bh=95ed56939eb2eaa4e2f349fe6dcd13ca4edfd8fb
→
http://www.openwall.com/lists/oss-security/2017/03/06/6Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/96611Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=1429432Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlThird Party Advisory
→
https://security.gentoo.org/glsa/201704-01Third Party Advisory
→
http://git.qemu-project.org/?p=qemu.git%3Ba=commitdiff%3Bh=95ed56939eb2eaa4e2f349fe6dcd13ca4edfd8fb
→
http://www.openwall.com/lists/oss-security/2017/03/06/6Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/96611Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=1429432Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlThird Party Advisory
→
https://security.gentoo.org/glsa/201704-01Third Party Advisory

Quick Facts

CVE IDCVE-2017-6505
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-835
CISA KEVNo
Affected1 vendor(s)
PublishedMar 15, 2017

Related CVEs (CWE-835)

CVE-2018-20784
9.8
CVE-2017-12997
9.8
CVE-2017-12995
9.8
CVE-2017-12990
9.8
CVE-2024-43366
9.1
CVE-2021-42143
9.1

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-6505 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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