ProFTPD up to 1.3.5 TLS tls_verify_crl null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in ProFTPD up to 1.3.5. It has been declared as problematic. The impacted element is the function tls_verify_crl of the component TLS Handler. Executing a manipulation can lead to null pointer dereference. This vulnerability is tracked as CVE-2019-19272. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in ProFTPD up to 1.3.5 (File Transfer Software) and classified as problematic. This vulnerability affects the function tls_verify_crl of the component TLS Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. Direct dereference of a NULL pointer (a variable initialized to NULL) leads to a crash when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.

The weakness was disclosed 11/26/2019. This vulnerability was named CVE-2019-19272 since 11/26/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 1.3.6 eliminates this vulnerability.

The entries VDB-146361 and VDB-146360 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ProFTPD 1.3.6

Timelineinfo

11/26/2019 🔍
11/26/2019 +0 days 🔍
11/26/2019 +0 days 🔍
02/28/2024 +1555 days 🔍

Sourcesinfo

Product: github.com

Advisory: 858
Status: Not defined

CVE: CVE-2019-19272 (🔍)
GCVE (CVE): GCVE-0-2019-19272
GCVE (VulDB): GCVE-100-146362
See also: 🔍

Entryinfo

Created: 11/26/2019 14:07
Updated: 02/28/2024 09:33
Changes: 11/26/2019 14:07 (38), 11/26/2019 14:12 (18), 02/28/2024 09:33 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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