HOMEVULNERABILITIESCVE-2017-2633
MEDIUM

CVE-2017-2633

CWE-120Published: July 27, 2018· Updated: Jun 17, 2026

5.4
CVSS v3.1

Official Description

An out-of-bounds memory access issue was found in Quick Emulator (QEMU) before 1.7.2 in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user inside a guest could use this flaw to crash the QEMU process.

NVD Source

Technical Analysis

CVE-2017-2633 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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

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 VectorAdjacent
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeChanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityLow
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

Affected Vendors & Products

qemu1 product(s)
qemu
Red Hat5 product(s)
enterprise linux desktopenterprise linux serverenterprise linux server ausenterprise linux server eusenterprise linux workstation
Source: NVD CPE · 10 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/2017/02/23/1
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2633
PATCHhttp://www.openwall.com/lists/oss-security/2017/02/23/1
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2633
ADVISORYhttp://www.securityfocus.com/bid/96417
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1205
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1206
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1441
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1856
ADVISORYhttp://www.securityfocus.com/bid/96417
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1205
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1206
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1441
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1856

All References (18)

→
http://www.openwall.com/lists/oss-security/2017/02/23/1Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/96417Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2017:1205Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2017:1206Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2017:1441Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2017:1856Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2633Issue Tracking · Patch · Third Party Advisory
→
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9f64916da20eea67121d544698676295bbb105a7
→
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=bea60dd7679364493a0d7f5b54316c767cf894ef
→
http://www.openwall.com/lists/oss-security/2017/02/23/1Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/96417Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2017:1205Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2017:1206Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2017:1441Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2017:1856Third Party Advisory

Quick Facts

CVE IDCVE-2017-2633
CVSS Score5.4 / 10
SeverityMEDIUM
WeaknessCWE-120
CISA KEVNo
Affected2 vendor(s)
PublishedJul 27, 2018

Related CVEs (CWE-120)

CVE-2012-10035
10.0
CVE-2025-9962
10.0
CVE-2001-0191
10.0
CVE-2022-22570
10.0
CVE-2008-3496
10.0
CVE-2015-5093
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-2633 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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