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4 vulnerabilities by tweedegolf
CVE-2026-26076 (GCVE-0-2026-26076)
Vulnerability from nvd – Published: 2026-02-12 21:48 – Updated: 2026-02-13 16:00
VLAI
Title
ntpd-rs affected by excessive CPU load from malformed packets
Summary
ntpd-rs is a full-featured implementation of the Network Time Protocol. Prior to 1.7.1, an attacker can remotely induce moderate increases (2-4 times above normal) in cpu usage. When having NTS enabled on an ntpd-rs server, an attacker can create malformed NTS packets that take significantly more effort for the server to respond to by requesting a large number of cookies. This can lead to degraded server performance even when a server could otherwise handle the load. This vulnerability is fixed in 1.7.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pendulum-project/ntpd-rs/secur… | x_refsource_CONFIRM |
| https://github.com/pendulum-project/ntpd-rs/commi… | x_refsource_MISC |
| https://github.com/pendulum-project/ntpd-rs/relea… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pendulum-project | ntpd-rs |
Affected:
< 1.7.1
|
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CVE-2023-33192 (GCVE-0-2023-33192)
Vulnerability from nvd – Published: 2023-05-27 03:53 – Updated: 2025-01-14 18:20
VLAI
Title
Improper handling of NTS cookie length that could crash the ntpd-rs server
Summary
ntpd-rs is an NTP implementation written in Rust. ntpd-rs does not validate the length of NTS cookies in received NTP packets to the server. An attacker can crash the server by sending a specially crafted NTP packet containing a cookie shorter than what the server expects. The server also crashes when it is not configured to handle NTS packets. The issue was caused by improper slice indexing. The indexing operations were replaced by safer alternatives that do not crash the ntpd-rs server process but instead properly handle the error condition. A patch was released in version 0.3.3.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pendulum-project/ntpd-rs/secur… | x_refsource_CONFIRM |
| https://github.com/pendulum-project/ntpd-rs/pull/752 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pendulum-project | ntpd-rs |
Affected:
>= 0.3.0, < 0.3.3
|
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CVE-2026-26076 (GCVE-0-2026-26076)
Vulnerability from cvelistv5 – Published: 2026-02-12 21:48 – Updated: 2026-02-13 16:00
VLAI
Title
ntpd-rs affected by excessive CPU load from malformed packets
Summary
ntpd-rs is a full-featured implementation of the Network Time Protocol. Prior to 1.7.1, an attacker can remotely induce moderate increases (2-4 times above normal) in cpu usage. When having NTS enabled on an ntpd-rs server, an attacker can create malformed NTS packets that take significantly more effort for the server to respond to by requesting a large number of cookies. This can lead to degraded server performance even when a server could otherwise handle the load. This vulnerability is fixed in 1.7.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pendulum-project/ntpd-rs/secur… | x_refsource_CONFIRM |
| https://github.com/pendulum-project/ntpd-rs/commi… | x_refsource_MISC |
| https://github.com/pendulum-project/ntpd-rs/relea… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pendulum-project | ntpd-rs |
Affected:
< 1.7.1
|
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CVE-2023-33192 (GCVE-0-2023-33192)
Vulnerability from cvelistv5 – Published: 2023-05-27 03:53 – Updated: 2025-01-14 18:20
VLAI
Title
Improper handling of NTS cookie length that could crash the ntpd-rs server
Summary
ntpd-rs is an NTP implementation written in Rust. ntpd-rs does not validate the length of NTS cookies in received NTP packets to the server. An attacker can crash the server by sending a specially crafted NTP packet containing a cookie shorter than what the server expects. The server also crashes when it is not configured to handle NTS packets. The issue was caused by improper slice indexing. The indexing operations were replaced by safer alternatives that do not crash the ntpd-rs server process but instead properly handle the error condition. A patch was released in version 0.3.3.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pendulum-project/ntpd-rs/secur… | x_refsource_CONFIRM |
| https://github.com/pendulum-project/ntpd-rs/pull/752 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pendulum-project | ntpd-rs |
Affected:
>= 0.3.0, < 0.3.3
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