CVE-2018-18438

Aliases:DEBIAN-CVE-2018-18438CGA-2mw3-p6gp-99hvCGA-2rg6-wh6j-7j5gCGA-3cmj-4cg3-7224CGA-3wjw-5gc3-vgwpCGA-57g6-52w4-f477CGA-5vgm-fwh5-q742CGA-6f37-r349-3g65CGA-6w9c-w8vr-v365CGA-75gc-cp32-xjq9CGA-7jvp-7v9m-xjx9CGA-7pm2-jw2q-rx68CGA-8rmw-2gv9-2pq2CGA-9vfq-wrxm-2w7fCGA-cg8q-h6x3-29j5CGA-cw5j-78g2-6vfpCGA-g4cj-96wc-p54hCGA-g8hc-9j2w-7526CGA-gff7-845x-c9f7CGA-hc96-2vq5-cp69CGA-j7mw-xhr4-7qpcCGA-m7h6-p7v3-j378CGA-pj47-j697-2px3CGA-r45h-g5j6-7qfvCGA-rjw2-gcvv-66r9CGA-v6v4-hp6v-x97fCGA-vg4w-v766-r7g6CGA-wqr3-jm6g-gmvxCGA-wx55-wc22-8c77
Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 19 Oct 2018, 22:00
Last modified:05 Aug 2024, 11:08

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.44% LOW
0% probability +0.35%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Oct 2018, 22:00
Published
Vulnerability first disclosed
05 Aug 2024, 11:08
Last Modified
Vulnerability information updated

Description

Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.44%• Percentile: 38%

Techniques & Countermeasures

  • CWE-190•Integer Overflow or Wraparound

    The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected Systems

  • chainguard•qemu

    < 0

  • chainguard•qemu-block-iscsi

    < 0

  • chainguard•qemu-block-rbd

    < 0

  • chainguard•qemu-edk2-aarch64

    < 0

  • chainguard•qemu-edk2-x86_64

    < 0

  • chainguard•qemu-ipxe

    < 0

  • chainguard•qemu-modules

    < 0

  • chainguard•qemu-modules-spice

    < 0

  • chainguard•qemu-modules-usb-host

    < 0

  • chainguard•qemu-system-aarch64

    < 0

  • chainguard•qemu-system-x86_64

    < 0

  • chainguard•qemu-user

    < 0

  • chainguard•qemu-user-binfmt

    < 0

  • chainguard•qemu-utils

    < 0

  • wolfi•qemu

    < 0

  • wolfi•qemu-block-iscsi

    < 0

  • wolfi•qemu-block-rbd

    < 0

  • wolfi•qemu-edk2-aarch64

    < 0

  • wolfi•qemu-edk2-x86_64

    < 0

  • wolfi•qemu-ipxe

    < 0

  • wolfi•qemu-modules

    < 0

  • wolfi•qemu-modules-spice

    < 0

  • wolfi•qemu-modules-usb-host

    < 0

  • wolfi•qemu-system-aarch64

    < 0

  • wolfi•qemu-system-x86_64

    < 0

  • wolfi•qemu-user

    < 0

  • wolfi•qemu-user-binfmt

    < 0

  • wolfi•qemu-utils

    < 0

  • debian•qemu

    < 1:3.1+dfsg-1 | < 1:3.1+dfsg-1 | < 1:3.1+dfsg-1 | < 1:3.1+dfsg-1

  • qemu•qemu

    na

  • redhat•enterprise_linux

    6.0 | 7.0

  • redhat•openstack

    8 | 9 | 10 | 12 | 13

References (5)