CVE-2019-15890
Public on 2019-09-06
Modified on 2021-01-13
Description
A use-after-free issue was found in the SLiRP networking implementation of the QEMU emulator. The issue occurs in ip_reass() routine while reassembling incoming packets, if the first fragment is bigger than the m->m_dat[] buffer. A user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | qemu | 2020-12-08 | ALAS2-2020-1570 | Fixed |
| Amazon Linux 1 | qemu-kvm | 2021-01-12 | ALAS-2021-1467 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.6 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
| NVD | CVSSv2 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| NVD | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |