CVE-2016-6490: qemu Classic Buffer Overflow
CVSS: 4.4v3.1MediumModified
AliasesDEBIAN-CVE-2016-6490
Published 10-12-2016Last modified 06-08-2024
Vulnerability summary
CVE-2016-6490 is a medium (CVSS 4.4) Classic Buffer Overflow vulnerability in qemu. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 32.2% of scored vulnerabilities.
CVSS score
4.4/10
010
Medium · v3.1 (NVD)EPSS score
0.39%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 10-12-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the descriptor buffer.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.4Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · DebianEcosystem advisory · calculated4.4MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Low 2.1Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
0.00 pp
From 0.39% on 21-09-2026
21-09-202621-10-2026
EPSS score0.39%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- qemu< 1:2.6+dfsg-3.1
Qemu1 product
- qemu≤ 2.6.2 | 2.7.0:rc0
2 vendors · 2 products
References
6 links- lists.gnu.org/archive/html/qemu-devel/2016-07/msg06246.htmlMailing ListX Refsource MLISTPatchThird Party Advisory
