DENX U-Boot up to 2018.09-rc1 Filesystem Loader memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in DENX U-Boot up to 2018.09-rc1. The impacted element is an unknown function of the component Filesystem Loader. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2018-18440. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability was found in DENX U-Boot up to 2018.09-rc1. It has been declared as problematic. This vulnerability affects some unknown functionality of the component Filesystem Loader. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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

The bug was discovered 11/02/2018. The weakness was shared 11/20/2018 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2018-18440 since 10/17/2018. The attack needs to be approached locally. A single authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 18 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-127023 and VDB-138945 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/17/2018 🔍
11/02/2018 +16 days 🔍
11/20/2018 +18 days 🔍
11/20/2018 +0 days 🔍
11/21/2018 +1 days 🔍
06/11/2023 +1663 days 🔍

Sourcesinfo

Advisory: ssa-618620
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-18440 (🔍)
GCVE (CVE): GCVE-0-2018-18440
GCVE (VulDB): GCVE-100-127024
See also: 🔍

Entryinfo

Created: 11/21/2018 12:09
Updated: 06/11/2023 08:28
Changes: 11/21/2018 12:09 (57), 04/14/2020 09:57 (2), 06/11/2023 08:28 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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