CVE-2020-15863

Advisory lineage Upstream: 0 Downstream: 15
Modified
Published: 28 Jul 2020, 15:40
Last modified:04 Aug 2024, 13:30

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
0.13% LOW
0% probability +0.08%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

28 Jul 2020, 15:40
Published
Vulnerability first disclosed
04 Aug 2024, 13:30
Last Modified
Vulnerability information updated

Description

hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
  • v2.0•MEDIUM•Score: 4.4AV:L/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.13%• Percentile: 31%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • canonical•ubuntu_linux

    16.04 | 18.04 | 20.04

  • debian•debian_linux

    10.0

  • qemu•qemu

    ≤ 5.0.0 | 5.1.0:rc0

References (8)