CVE-2019-14283: linux linux_kernel Out-of-bounds Read

Vulnerability summary

CVE-2019-14283 is a medium (CVSS 6.8) Out-of-bounds Read vulnerability in linux linux_kernel. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 54.4% of scored vulnerabilities.

Timeline

1. 26-07-2019
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

In the Linux kernel before 5.2.3, set_geometry in drivers/block/floppy.c does not validate the sect and head fields, as demonstrated by an integer overflow and out-of-bounds read. It can be triggered by an unprivileged local user when a floppy disk has been inserted. NOTE: QEMU creates the floppy device by default.

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
• CWE-190Integer Overflow or WraparoundThe 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.