rustls up to 0.23.17 Acceptor::accept denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k1.55

Summaryinfo

A vulnerability marked as problematic has been reported in rustls up to 0.23.17. Affected is the function Acceptor::accept. The manipulation leads to denial of service. This vulnerability is documented as CVE-2024-11738. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in rustls up to 0.23.17 and classified as problematic. This issue affects the function Acceptor::accept. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

A flaw was found in Rustls 0.23.13 and related APIs. This vulnerability allows denial of service (panic) via a fragmented TLS ClientHello message.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2024-11738 since 11/26/2024. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 306681 (SUSE SLED15 / SLES15 Security Update : himmelblau (SUSE-SU-2026:1361-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.23.18 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (306681). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: 306681
Nessus Name: SUSE SLED15 / SLES15 Security Update : himmelblau (SUSE-SU-2026:1361-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: rustls 0.23.18

Timelineinfo

11/26/2024 🔍
11/27/2024 +1 days 🔍
11/27/2024 +0 days 🔍
04/17/2026 +505 days 🔍

Sourcesinfo

Advisory: GHSA-qg5g-gv98-5ffh
Status: Confirmed

CVE: CVE-2024-11738 (🔍)
GCVE (CVE): GCVE-0-2024-11738
GCVE (VulDB): GCVE-100-286241

Entryinfo

Created: 11/27/2024 09:47
Updated: 04/17/2026 01:08
Changes: 11/27/2024 09:47 (53), 12/07/2024 02:37 (11), 07/29/2025 21:46 (12), 04/17/2026 01:08 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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