Cameron Hamilton-Rich axTLS up to 2.1.4 TLS Packet tls1.c need_bytes memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Cameron Hamilton-Rich axTLS up to 2.1.4. Affected by this issue is some unknown functionality of the file tls1.c of the component TLS Packet Handler. Executing a manipulation of the argument need_bytes can lead to memory corruption. This vulnerability is tracked as CVE-2019-8981. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Cameron Hamilton-Rich axTLS up to 2.1.4 and classified as critical. This vulnerability affects some unknown functionality of the file tls1.c of the component TLS Packet Handler. The manipulation of the argument need_bytes 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:

tls1.c in Cameron Hamilton-Rich axTLS before 2.1.5 has a Buffer Overflow via a crafted sequence of TLS packets because the need_bytes value is mismanaged.

The bug was discovered 03/22/2019. The weakness was disclosed 03/26/2019. This vulnerability was named CVE-2019-8981 since 02/21/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.1.5 eliminates this vulnerability.

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

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
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: 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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: axTLS 2.1.5

Timelineinfo

02/21/2019 🔍
03/22/2019 +29 days 🔍
03/26/2019 +4 days 🔍
03/26/2019 +0 days 🔍
08/07/2023 +1595 days 🔍

Sourcesinfo

Advisory: axtls.sourceforge.net
Status: Not defined

CVE: CVE-2019-8981 (🔍)
GCVE (CVE): GCVE-0-2019-8981
GCVE (VulDB): GCVE-100-132232

Entryinfo

Created: 03/26/2019 14:17
Updated: 08/07/2023 13:22
Changes: 03/26/2019 14:17 (57), 05/20/2020 09:30 (1), 08/07/2023 13:22 (4)
Complete: 🔍
Cache ID: 216::103

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