cURL up to 7.76.1 TLS 1.3 Session Ticket use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in cURL up to 7.76.1. The affected element is an unknown function of the component TLS 1.3 Session Ticket Handler. Such manipulation leads to use after free. This vulnerability is traded as CVE-2021-22901. The attack may be launched remotely. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in cURL up to 7.76.1 (Network Utility Software) and classified as critical. Affected by this issue is some unknown functionality of the component TLS 1.3 Session Ticket Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was shared 06/11/2021. The advisory is shared for download at curl.se. This vulnerability is handled as CVE-2021-22901. There are neither technical details nor an exploit publicly available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

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

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

01/06/2021 🔍
06/11/2021 +155 days 🔍
06/11/2021 +0 days 🔍
06/13/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: curl.se
Status: Confirmed

CVE: CVE-2021-22901 (🔍)
GCVE (CVE): GCVE-0-2021-22901
GCVE (VulDB): GCVE-100-176864

Entryinfo

Created: 06/11/2021 23:04
Updated: 06/13/2021 15:51
Changes: 06/11/2021 23:04 (38), 06/13/2021 15:51 (5)
Complete: 🔍
Cache ID: 216::103

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