CVE-2016-5403: canonical ubuntu_linux Uncontrolled Resource Consumption
Vulnerability summary
CVE-2016-5403 is a medium (CVSS 5.5) Uncontrolled Resource Consumption vulnerability in canonical ubuntu_linux. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 44.2% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 22 · Related 11Timeline
- 02-08-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The virtqueue_pop function in hw/virtio/virtio.c in QEMU allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) by submitting requests without waiting for completion.
CVSS metrics
7 scores · 5 sources · 3 versions- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.52%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.52% 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 causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat17 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.2 | 7.3 | 7.4 | 7.5 | 7.6 | 7.7
- enterprise_linux_server_eus7.2 | 7.3 | 7.4 | 7.5 | 7.6 | 7.7
- enterprise_linux_server_tus7.2 | 7.3 | 7.6 | 7.7
Debian2 products
- qemu< 1:2.6+dfsg-3.1
- debian_linuxEOL8.0
Ubuntu2 products
- qemu< 2.0.0+dfsg-2ubuntu1.30 | < 1:2.5+dfsg-5ubuntu10.6
- xen< 4.4.2-0ubuntu0.14.04.7
Alpine1 product
- xen< 4.7.0-r0 | < 4.6.3-r1
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04
Qemu1 product
- qemu≤ 2.6.0 | 2.7.0:rc0
7 vendors · 26 products
References
37 links- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlX Refsource CONFIRMThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1358359X Refsource CONFIRMIssue TrackingThird Party AdvisoryREPORT
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlX Refsource CONFIRMThird Party Advisory
- www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlX Refsource CONFIRMThird Party Advisory
Show all 37 references
lists.debian.org/debian-lts-announce/2019/09/msg00021.htmlMailing ListX Refsource MLISTThird Party Advisory