CVE-2018-17963

Advisory lineage Upstream: 0 Downstream: 25
Modified
Published: 09 Oct 2018, 22:00
Last modified:05 Aug 2024, 11:01

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
1.45% LOW
1% probability -0.08%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Oct 2018, 22:00
Published
Vulnerability first disclosed
05 Aug 2024, 11:01
Last Modified
Vulnerability information updated

Description

qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 1.45%• Percentile: 81%

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

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 18.10

  • debian•debian_linux

    8.0 | 9.0

  • qemu•qemu

    ≤ 3.0.0 | 3.1.0:rc0 | 3.1.0:rc1 | 3.1.0:rc2 | 3.1.0:rc3

  • redhat•openstack

    10 | 13 | 14

  • redhat•virtualization

    4.0

  • redhat•virtualization_manager

    4.3

References (9)