CVE-2019-9689
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.
02 Description
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.47% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 73.6% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-12-03 19:59Z6 YR AGO
- Last updated
- 2024-08-04 21:54Z2 YR AGO
- Reserved
- 2019-03-11
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
- Data version
- 5.1
- Document digest
- b6395eeef2cd7c4667907cfaafab820d174d3ebfc13ee11094d35ff466dfc323
05 Affected products
06 References
- axtls.sourceforge.nethttp://axtls.sourceforge.net
- www.telekom.comhttps://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842
- seclists.org20191128 [Public Disclosure] Two Denial-of-Service vulnerabilities found in axTLS library (CVE-2019-9689 / CVE-2019-10013)https://seclists.org/bugtraq/2019/Nov/44
- packetstormsecurity.comhttp://packetstormsecurity.com/files/155500/axTLS-2.1.5-Denial-Of-Service.html
- www.telekom.comhttps://www.telekom.com/resource/blob/586428/51ae062269fbcb068bd20379f87f1398/dl-191121-critical-remote-denial-of-service-vulnerability-ii--data.pdf
07 Fixed in
Ubuntu 20.04 LTS
- axtls No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- axtls No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.