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CVE-2018-12180

Public on 2019-03-27
Modified on 2019-08-27
Description

A flaw was found in edk2. When registering a RAM disk whose size is not a multiple of 512 bytes, the BlockIo protocol produced by the RamDiskDxe driver will incur memory read/write overrun. The memory overrun will happen when reading/writing the last block on the RAM disk. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Severity
Important
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CVSS v3 Base Score
8.3
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core edk2 2019-08-23 03:26 ALAS2-2019-1273

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
NVD CVSSv2 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
NVD CVSSv3 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H