Vulnerability CVE-2018-18440

Vulnerability Name:

CVE-2018-18440 (CCN-152490)

Assigned:

2018-11-02

Published:

2018-11-02

Updated:

2019-12-10

Summary:

DENX U-Boot through 2018.09-rc1 has a locally exploitable buffer overflow via a crafted kernel image because filesystem loading is mishandled.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-119

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2018-18440

Source: MLIST
Type: Exploit, Mailing List, Mitigation, Third Party Advisory
[oss-security] 20181102 CVE-2018-18439, CVE-2018-18440 - U-Boot verified boot bypass vulnerabilities

Source: CONFIRM
Type: UNKNOWN
https://cert-portal.siemens.com/productcert/pdf/ssa-618620.pdf

Source: XF
Type: UNKNOWN
denx-cve201818440-bo(152490)

Source: CCN
Type: oss-sec Mailing List, Fri, 2 Nov 2018 05:30:02 +0100
CVE-2018-18439, CVE-2018-18440 - U-Boot verified boot bypass vulnerabilities

Source: CCN
Type: ICSA-19-344-03
Siemens RUGGEDCOM ROS (Update A)

Source: CCN
Type: DENX
U-Boot

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-18440

Vulnerable Configuration:

Configuration 1:

cpe:/a:denx:u-boot:*:*:*:*:*:*:*:* (Version <= 2018.07)

OR cpe:/a:denx:u-boot:2018.09:rc1:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:denx:u-boot:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:201818440	V	CVE-2018-18440	2023-06-22
oval:org.opensuse.security:def:7820	P	u-boot-rpiarm64-2021.10-150400.4.11.1 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:3213	P	libmusicbrainz4-2.1.5-27.79 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:94843	P	u-boot-rpiarm64-2021.10-150400.2.6 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:322	P	u-boot-rpiarm64-2021.01-5.1 on GA media (Moderate)	2022-06-13
oval:org.opensuse.security:def:374	P	u-boot-rpiarm64-2021.10-150400.2.6 on GA media (Moderate)	2022-06-10
oval:org.opensuse.security:def:905	P	Security update for pcre2 (Important)	2022-05-30
oval:org.opensuse.security:def:106340	P	libtspi1-0.3.15-1.7 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:72081	P	u-boot-rpiarm64-2021.01-5.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:101098	P	u-boot-rpiarm64-2021.01-5.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:1251	P	u-boot-rpiarm64-2021.01-5.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62340	P	u-boot-rpiarm64-2021.01-5.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:69892	P	Security update for sqlite3 (Important)	2021-07-14
oval:org.opensuse.security:def:93961	P	(Important)	2021-06-11
oval:org.opensuse.security:def:69997	P	Security update for postgresql12 (Moderate)	2021-03-03
oval:org.opensuse.security:def:100674	P	(Important)	2021-02-09
oval:org.opensuse.security:def:71735	P	u-boot-rpiarm64-2020.01-8.3 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:107340	P	u-boot-rpiarm64-2020.01-8.3 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:61994	P	u-boot-rpiarm64-2020.01-8.3 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:116898	P	u-boot-rpiarm64-2020.01-8.3 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:73332	P	u-boot-rpiarm64 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49292	P	patch on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49346	P	u-boot-rpiarm64 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73214	P	libruby2_5-2_5 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:66549	P	libvmtools-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:66641	P	u-boot-rpiarm64 on GA media (Moderate)	2020-12-01
oval:com.ubuntu.disco:def:2018184400000000	V	CVE-2018-18440 on Ubuntu 19.04 (disco) - negligible.	2018-11-20
oval:com.ubuntu.bionic:def:201818440000	V	CVE-2018-18440 on Ubuntu 18.04 LTS (bionic) - low.	2018-11-20
oval:com.ubuntu.cosmic:def:2018184400000000	V	CVE-2018-18440 on Ubuntu 18.10 (cosmic) - negligible.	2018-11-20
oval:com.ubuntu.cosmic:def:201818440000	V	CVE-2018-18440 on Ubuntu 18.10 (cosmic) - low.	2018-11-20
oval:com.ubuntu.bionic:def:2018184400000000	V	CVE-2018-18440 on Ubuntu 18.04 LTS (bionic) - negligible.	2018-11-20
oval:com.ubuntu.trusty:def:201818440000	V	CVE-2018-18440 on Ubuntu 14.04 LTS (trusty) - low.	2018-11-20
oval:com.ubuntu.xenial:def:2018184400000000	V	CVE-2018-18440 on Ubuntu 16.04 LTS (xenial) - negligible.	2018-11-20
oval:com.ubuntu.xenial:def:201818440000	V	CVE-2018-18440 on Ubuntu 16.04 LTS (xenial) - low.	2018-11-20

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