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