CVE-2018-16880
Advisory lineage Upstream: 0 Downstream: 10
Modified
Published: 29 Jan 2019, 16:00
Last modified:05 Aug 2024, 10:32
Vulnerability Summary
Overall Risk (default)
medium
28/100 CVSS Score
7 HIGH
v3.1 (nvd)
EPSS Score
0.1% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
29 Jan 2019, 16:00
Published
Vulnerability first disclosed
05 Aug 2024, 10:32
Last Modified
Vulnerability information updated
Description
A flaw was found in the Linux kernel's handle_rx() function in the [vhost_net] driver. A malicious virtual guest, under specific conditions, can trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. Versions from v4.16 and newer are vulnerable.
CVSS Metrics
- v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- v3.0•MEDIUM•Score: 5.9CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
- v2.0•MEDIUM•Score: 6.9AV:L/AC:M/Au:N/C:C/I:C/A:C
EPSS Trends
Current EPSS score: 0.10%• Percentile: 27%
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
18.04 | 18.10
- linux•linux_kernel
≥ 4.16, < 4.19.20 | ≥ 4.20, < 4.20.7
- the linux foundation•kernel
from v4.16 and newer