OpenWrt up to 18.06.6/19.07.0 libubox out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

A vulnerability, which was classified as critical, has been found in OpenWrt up to 18.06.6/19.07.0. Affected by this issue is some unknown processing of the component libubox. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

libubox in OpenWrt before 18.06.7 and 19.x before 19.07.1 has a tagged binary data JSON serialization vulnerability that may cause a stack based buffer overflow.

The weakness was shared 03/16/2020 (Website). The advisory is shared for download at openwrt.org. This vulnerability is handled as CVE-2020-7248 since 01/20/2020. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 18.06.7 or 19.07.1 eliminates this vulnerability.

The entries VDB-169360, VDB-171522, VDB-179962 and VDB-189401 are related to this item.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenWrt 18.06.7/19.07.1

Timelineinfo

01/20/2020 🔍
03/16/2020 +56 days 🔍
03/17/2020 +1 days 🔍
03/17/2020 +0 days 🔍

Sourcesinfo

Advisory: openwrt.org
Status: Not defined

CVE: CVE-2020-7248 (🔍)
See also: 🔍

Entryinfo

Created: 03/17/2020 09:54 AM
Updated: 03/17/2020 09:59 AM
Changes: 03/17/2020 09:54 AM (38), 03/17/2020 09:59 AM (17)
Complete: 🔍
Cache ID: 3:9D6:40

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