CVE-2019-10013

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.19% Top 25%
Vendor Advisory sourceforge.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://axtls.sourceforge.net vendor advisory
https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842
https://seclists.org/bugtraq/2019/Nov/44 mailing list
http://packetstormsecurity.com/files/155500/axTLS-2.1.5-Denial-Of-Service.html vdb entry third party advisory
https://www.telekom.com/resource/blob/586416/12097aeb8f9a6bba89a804b94575521a/dl-191121-critical-remote-denial-of-service-vulnerability-i--data.pdf

Frequently Asked Questions

What is the severity of CVE-2019-10013?
CVE-2019-10013 has been scored as a high severity vulnerability.
How to fix CVE-2019-10013?
To fix CVE-2019-10013, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-10013 being actively exploited in the wild?
It is possible that CVE-2019-10013 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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