9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
8.3 High
AI Score
Confidence
High
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.014 Low
EPSS
Percentile
86.5%
Issue Overview:
Logic error in FV parsing in MdeModulePkg\Core\Pei\FwVol\FwVol.c (CVE-2018-3630)
Logic issue in variable service module for EDK II/UDK2018/UDK2017/UDK2015 may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access. (CVE-2017-5734)
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. (CVE-2018-3613)
improper DNS packet size check (CVE-2018-12178)
Privilege escalation via heap-based buffer overflow in Decode() function (CVE-2017-5735)
Privilege escalation via heap-based buffer overflow in MakeTable() function (CVE-2017-5733)
Privilege escalation via processing of malformed files in TianoCompress.c (CVE-2017-5731)
Privilege escalation via processing of malformed files in BaseUefiDecompressLib.c (CVE-2017-5732)
A stack-based buffer overflow was discovered in edk2 when the HII database contains a Bitmap that claims to be 4-bit or 8-bit per pixel, but the palette contains more than 16(2^4) or 256(2^8) colors. (CVE-2018-12181)
Buffer overflow in BlockIo service for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via network access. (CVE-2018-12180)
Affected Packages:
edk2
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update edk2 to update your system.
New Packages:
aarch64:
edk2-tools-20190308stable-1.amzn2.0.1.aarch64
edk2-debuginfo-20190308stable-1.amzn2.0.1.aarch64
noarch:
edk2-tools-python-20190308stable-1.amzn2.0.1.noarch
edk2-tools-doc-20190308stable-1.amzn2.0.1.noarch
edk2-aarch64-20190308stable-1.amzn2.0.1.noarch
edk2-ovmf-20190308stable-1.amzn2.0.1.noarch
src:
edk2-20190308stable-1.amzn2.0.1.src
x86_64:
edk2-tools-20190308stable-1.amzn2.0.1.x86_64
edk2-debuginfo-20190308stable-1.amzn2.0.1.x86_64
Red Hat: CVE-2017-5731, CVE-2017-5732, CVE-2017-5733, CVE-2017-5734, CVE-2017-5735, CVE-2018-12178, CVE-2018-12180, CVE-2018-12181, CVE-2018-3613, CVE-2018-3630
Mitre: CVE-2017-5731, CVE-2017-5732, CVE-2017-5733, CVE-2017-5734, CVE-2017-5735, CVE-2018-12178, CVE-2018-12180, CVE-2018-12181, CVE-2018-3613, CVE-2018-3630
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | edk2-tools | < 20190308stable-1.amzn2.0.1 | edk2-tools-20190308stable-1.amzn2.0.1.aarch64.rpm |
Amazon Linux | 2 | aarch64 | edk2-debuginfo | < 20190308stable-1.amzn2.0.1 | edk2-debuginfo-20190308stable-1.amzn2.0.1.aarch64.rpm |
Amazon Linux | 2 | noarch | edk2-tools-python | < 20190308stable-1.amzn2.0.1 | edk2-tools-python-20190308stable-1.amzn2.0.1.noarch.rpm |
Amazon Linux | 2 | noarch | edk2-tools-doc | < 20190308stable-1.amzn2.0.1 | edk2-tools-doc-20190308stable-1.amzn2.0.1.noarch.rpm |
Amazon Linux | 2 | noarch | edk2-aarch64 | < 20190308stable-1.amzn2.0.1 | edk2-aarch64-20190308stable-1.amzn2.0.1.noarch.rpm |
Amazon Linux | 2 | noarch | edk2-ovmf | < 20190308stable-1.amzn2.0.1 | edk2-ovmf-20190308stable-1.amzn2.0.1.noarch.rpm |
Amazon Linux | 2 | x86_64 | edk2-tools | < 20190308stable-1.amzn2.0.1 | edk2-tools-20190308stable-1.amzn2.0.1.x86_64.rpm |
Amazon Linux | 2 | x86_64 | edk2-debuginfo | < 20190308stable-1.amzn2.0.1 | edk2-debuginfo-20190308stable-1.amzn2.0.1.x86_64.rpm |
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
8.3 High
AI Score
Confidence
High
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.014 Low
EPSS
Percentile
86.5%