NICMx Fort 1.6.3/1.6.4 Manifest RPKI Object integer underflow

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in NICMx Fort 1.6.3/1.6.4. This issue affects some unknown processing of the component Manifest RPKI Object Handler. Such manipulation leads to integer underflow. This vulnerability is uniquely identified as CVE-2024-56375. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in NICMx Fort 1.6.3/1.6.4. Affected by this issue is some unknown functionality of the component Manifest RPKI Object Handler. The manipulation with an unknown input leads to a integer underflow vulnerability. Using CWE to declare the problem leads to CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. Impacted is availability. CVE summarizes:

An integer underflow was discovered in Fort 1.6.3 and 1.6.4 before 1.6.5. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a Manifest RPKI object containing an empty fileList. Fort dereferences (and, shortly afterwards, writes to) this array during a shuffle attempt, before the validation that would normally reject it when empty. This out-of-bounds access is caused by an integer underflow that causes the surrounding loop to iterate infinitely. Because the product is permanently stuck attempting to overshuffle an array that doesn't actually exist, a crash is nearly guaranteed.

The advisory is shared for download at nicmx.github.io. This vulnerability is handled as CVE-2024-56375 since 12/22/2024. The exploitation is known to be difficult. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.6.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2024-53133). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (MITRE): 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
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: Fort 1.6.5

Timelineinfo

12/22/2024 🔍
12/23/2024 +1 days 🔍
12/23/2024 +0 days 🔍
06/23/2025 +181 days 🔍

Sourcesinfo

Advisory: nicmx.github.io
Status: Confirmed

CVE: CVE-2024-56375 (🔍)
GCVE (CVE): GCVE-0-2024-56375
GCVE (VulDB): GCVE-100-289172
EUVD: 🔍

Entryinfo

Created: 12/23/2024 07:53
Updated: 06/23/2025 01:32
Changes: 12/23/2024 07:53 (54), 12/24/2024 04:30 (12), 06/23/2025 01:32 (1)
Complete: 🔍
Cache ID: 216::103

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