Cloudflare cfnts NTP Server out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Cloudflare cfnts. Affected by this vulnerability is an unknown functionality of the component NTP Server. The manipulation results in out-of-bounds. This vulnerability was named CVE-2023-3036. The attack may be performed from remote. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cloudflare cfnts (Cloud Software) (the affected version unknown). Affected is an unknown part of the component NTP Server. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes:

An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit 783490b https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71  enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.

The weakness was presented 06/14/2023 as GHSA-pwx6-gw47-96cp. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-3036 since 06/01/2023. There are neither technical details nor an exploit publicly available.

Applying the patch 783490b is able to eliminate this problem.

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

Productinfo

Type

Vendor

Name

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (Cloudflare, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 783490b

Timelineinfo

06/01/2023 🔍
06/14/2023 +13 days 🔍
06/14/2023 +0 days 🔍
07/13/2023 +29 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-pwx6-gw47-96cp
Status: Confirmed

CVE: CVE-2023-3036 (🔍)
GCVE (CVE): GCVE-0-2023-3036
GCVE (VulDB): GCVE-100-231528

Entryinfo

Created: 06/14/2023 15:53
Updated: 07/13/2023 10:45
Changes: 06/14/2023 15:53 (51), 07/13/2023 10:45 (11)
Complete: 🔍
Cache ID: 216::103

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