Nettle 3.9.0 libnettle memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Nettle 3.9.0. The impacted element is an unknown function of the component libnettle. Executing a manipulation can lead to memory corruption. This vulnerability is registered as CVE-2023-36660. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Nettle 3.9.0. It has been declared as critical. This vulnerability affects some unknown functionality of the component libnettle. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

The weakness was published 06/26/2023 as 867a4548b95705291a3afdd66d76e7f17ba2618f. The advisory is shared for download at git.lysator.liu.se. This vulnerability was named CVE-2023-36660 since 06/25/2023. There are neither technical details nor an exploit publicly available.

Upgrading to version 3.9.1 eliminates this vulnerability. The upgrade is hosted for download at git.lysator.liu.se. Applying the patch 867a4548b95705291a3afdd66d76e7f17ba2618f is able to eliminate this problem. The bugfix is ready for download at git.lysator.liu.se. 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

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Nettle 3.9.1
Patch: 867a4548b95705291a3afdd66d76e7f17ba2618f

Timelineinfo

06/25/2023 🔍
06/26/2023 +1 days 🔍
06/26/2023 +0 days 🔍
07/18/2023 +22 days 🔍

Sourcesinfo

Advisory: 867a4548b95705291a3afdd66d76e7f17ba2618f
Status: Confirmed

CVE: CVE-2023-36660 (🔍)
GCVE (CVE): GCVE-0-2023-36660
GCVE (VulDB): GCVE-100-232360

Entryinfo

Created: 06/26/2023 06:49
Updated: 07/18/2023 14:59
Changes: 06/26/2023 06:49 (43), 07/18/2023 14:59 (11)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!