go-unixfs up to 0.4.2 HAMT Sharded Directory resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in go-unixfs up to 0.4.2. Impacted is an unknown function of the component HAMT Sharded Directory Handler. Such manipulation leads to resource consumption. This vulnerability is traded as CVE-2023-23625. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in go-unixfs up to 0.4.2 (Operating System). It has been rated as problematic. Affected by this issue is some unknown functionality of the component HAMT Sharded Directory Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

go-unixfs is an implementation of a unix-like filesystem on top of an ipld merkledag. Trying to read malformed HAMT sharded directories can cause panics and virtual memory leaks. If you are reading untrusted user input, an attacker can then trigger a panic. This is caused by bogus `fanout` parameter in the HAMT directory nodes. Users are advised to upgrade to version 0.4.3 to resolve this issue. Users unable to upgrade should not feed untrusted user data to the decoding functions.

The weakness was shared 02/10/2023 as GHSA-q264-w97q-q778. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2023-23625 since 01/16/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 0.4.3 eliminates this vulnerability. Applying the patch 467d139a640ecee4f2e74643dafcc58bb3b54175 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: go-unixfs 0.4.3
Patch: 467d139a640ecee4f2e74643dafcc58bb3b54175

Timelineinfo

01/16/2023 🔍
02/10/2023 +25 days 🔍
02/10/2023 +0 days 🔍
03/09/2023 +27 days 🔍

Sourcesinfo

Advisory: GHSA-q264-w97q-q778
Status: Confirmed

CVE: CVE-2023-23625 (🔍)
GCVE (CVE): GCVE-0-2023-23625
GCVE (VulDB): GCVE-100-220544

Entryinfo

Created: 02/10/2023 07:36
Updated: 03/09/2023 13:50
Changes: 02/10/2023 07:36 (53), 03/09/2023 13:50 (11)
Complete: 🔍
Cache ID: 216::103

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