Integer overflow in The Libssh2 Project
CVSS score
7.5
EPSS probability
%3.4
Risk score
0.3
Published
7 y ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2019-3863 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2019-3863 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | The libssh2 Project | libssh2 | View |
| 2 | libssh2 | libssh2 | View |
| 3 | debian | debian linux | View |
| 4 | netapp | ontap select deploy administration utility | View |
| 5 | opensuse | leap | View |
| 6 | opensuse | leap | View |
| 7 | redhat | enterprise linux desktop | View |
| 8 | redhat | enterprise linux server | View |
| 9 | redhat | enterprise linux server aus | View |
| 10 | redhat | enterprise linux server eus | View |
| 11 | redhat | enterprise linux server tus | View |
| 12 | redhat | enterprise linux workstation | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 8.8 | CVSS V30 | HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD |
| 7.5 | CVSS V30 | HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD |
| 7.5 | CVSS V3_0 | HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | CVE CNA |
| 6.8 | CVSS V2 | — | AV:N/AC:M/Au:N/C:P/I:P/A:P | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-3863 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-3863 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
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Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2019-3863"