NULL pointer dereference in N/a Libxml2
CVSS score
5.9
EPSS probability
%3.6
Risk score
0.2
Published
5 y ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2021-3537 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2021-3537 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | n/a | libxml2 | View |
| 2 | xmlsoft | libxml2 | View |
| 3 | redhat | jboss core services | View |
| 4 | redhat | enterprise linux | View |
| 5 | redhat | enterprise linux | View |
| 6 | redhat | enterprise linux | View |
| 7 | debian | debian linux | View |
| 8 | fedoraproject | fedora | View |
| 9 | fedoraproject | fedora | View |
| 10 | netapp | active iq unified manager | View |
| 11 | netapp | clustered data ontap | View |
| 12 | netapp | clustered data ontap antivirus connector | View |
| 13 | netapp | manageability software development kit | View |
| 14 | netapp | ontap select deploy administration utility | View |
| 15 | netapp | snapdrive | View |
| 16 | netapp | hci h410c firmware | View |
| 17 | netapp | hci h410c | View |
| 18 | oracle | communications cloud native core network function cloud native environment | View |
| 19 | oracle | enterprise manager base platform | View |
| 20 | oracle | enterprise manager base platform | View |
| 21 | oracle | enterprise manager ops center | View |
| 22 | oracle | mysql workbench | View |
| 23 | oracle | openjdk | View |
| 24 | oracle | peoplesoft enterprise peopletools | View |
| 25 | oracle | real user experience insight | View |
| 26 | oracle | real user experience insight | 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 |
|---|---|---|---|---|
| 5.9 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD |
| 4.3 | CVSS V2 | — | AV:N/AC:M/Au:N/C:N/I:N/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-2021-3537 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-2021-3537 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
Get this vulnerability through the API
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curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2021-3537"