CVE-2017-2633: qemu
Vulnerability summary
CVE-2017-2633 is a medium (CVSS 6.5) vulnerability in qemu. EPSS estimates a 3.08% chance of exploitation in the next 30 days, higher than 87.6% of scored vulnerabilities.
Not severe (CVSS 5.4, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 7Timeline
- 27-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA5.4MediumCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:LDiffers
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.08%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
Increase +0.04 pp
From 3.04% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-120Buffer Copy without Checking Size of InputThe product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
- CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Known conditions: adjacent network, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat5 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.4
- enterprise_linux_server_eus7.4 | 7.5
- enterprise_linux_workstation6.0 | 7.0
Qemu2 products
- qemu< 1.7.2
- qemu:1.7.2
Debian1 product
- qemu< 2.1+dfsg-1
Ubuntu1 product
- qemu< 2.0.0+dfsg-2ubuntu1.33
4 vendors · 9 products
References
13 links- www.openwall.com/lists/oss-security/2017/02/23/1Mailing ListX Refsource MLISTPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2633X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
