GnuTLS up to 3.8.2 RSA-PSK ClientKeyExchange information exposure

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in GnuTLS up to 3.8.2. This affects an unknown part of the component RSA-PSK ClientKeyExchange Handler. The manipulation results in information exposure. This vulnerability is cataloged as CVE-2024-0553. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in GnuTLS up to 3.8.2 (Network Encryption Software). Affected is an unknown function of the component RSA-PSK ClientKeyExchange Handler. The manipulation with an unknown input leads to a information exposure vulnerability. CWE is classifying the issue as CWE-203. The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not. This is going to have an impact on confidentiality. CVE summarizes:

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange, potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981.

The weakness was shared 01/16/2024. The advisory is shared for download at gitlab.com. This vulnerability is traded as CVE-2024-0553 since 01/15/2024. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 253531 (Linux Distros Unpatched Vulnerability : CVE-2024-0553), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.8.3 eliminates this vulnerability. The upgrade is hosted for download at gnupg.org.

The vulnerability is also documented in the vulnerability database at Tenable (253531). 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: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Information exposure
CWE: CWE-203 / CWE-200 / CWE-284
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: 253531
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2024-0553

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: GnuTLS 3.8.3

Timelineinfo

01/15/2024 🔍
01/16/2024 +1 days 🔍
01/16/2024 +0 days 🔍
02/26/2026 +772 days 🔍

Sourcesinfo

Advisory: RHSA-2024:0533
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2024-0553 (🔍)
GCVE (CVE): GCVE-0-2024-0553
GCVE (VulDB): GCVE-100-250824

Entryinfo

Created: 01/16/2024 13:07
Updated: 02/26/2026 09:25
Changes: 01/16/2024 13:07 (51), 02/06/2024 08:13 (1), 02/06/2024 08:18 (1), 06/27/2024 19:19 (28), 08/22/2025 15:11 (3), 02/26/2026 09:25 (1)
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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