NTP 4.2.8p15 libntp/mstolfp.c mstolfp out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in NTP 4.2.8p15. This issue affects the function mstolfp of the file libntp/mstolfp.c. Such manipulation leads to out-of-bounds write. This vulnerability is referenced as CVE-2023-26553. No exploit is available.

Detailsinfo

A vulnerability was found in NTP 4.2.8p15 (Network Management Software) and classified as critical. Affected by this issue is the function mstolfp of the file libntp/mstolfp.c. 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:

mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when copying the trailing number.

The weakness was published 04/12/2023. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2023-26553 since 02/25/2023. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 310772 (Juniper Junos OS Multiple Vulnerabilities (JSA73177)), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the databases at Tenable (310772) and EUVD (EUVD-2023-30350). 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: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.6
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / 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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Nessus ID: 310772
Nessus Name: Juniper Junos OS Multiple Vulnerabilities (JSA73177)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/25/2023 🔍
04/12/2023 +45 days 🔍
04/12/2023 +0 days 🔍
04/29/2026 +1113 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2023-26553 (🔍)
GCVE (CVE): GCVE-0-2023-26553
GCVE (VulDB): GCVE-100-225680
EUVD: 🔍

Entryinfo

Created: 04/12/2023 07:34
Updated: 04/29/2026 12:03
Changes: 04/12/2023 07:34 (39), 04/30/2023 08:46 (10), 11/10/2025 01:05 (16), 04/29/2026 12:03 (2)
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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