CVE-2018-12178

Public on 2019-03-27
Modified on 2019-08-27
Description
A missing check leads to an out-of-bounds read and write flaw in NetworkPkg/DnsDxe as shipped in edk2, when it parses DNS responses. A remote attacker who controls the DNS server used by the vulnerable firmware may use this flaw to make the system crash.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.2
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core edk2 2019-08-23 ALAS2-2019-1273 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.2 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
NVD CVSSv2 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P
NVD CVSSv3 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2018-12178 Mitre: CVE-2018-12178