CVE-2019-10013

high

Description

The asn1_signature function in asn1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow that allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted certificate in the TLS certificate handshake message, because the result of get_asn1_length() is not checked for a minimum or maximum size.

References

https://www.telekom.com/resource/blob/586416/12097aeb8f9a6bba89a804b94575521a/dl-191121-critical-remote-denial-of-service-vulnerability-i--data.pdf

https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842

https://seclists.org/bugtraq/2019/Nov/44

http://packetstormsecurity.com/files/155500/axTLS-2.1.5-Denial-Of-Service.html

http://axtls.sourceforge.net

Details

Source: Mitre, NVD

Published: 2019-12-03

Updated: 2019-12-31

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.01479