CVE catalog
CVE-2024-21386
UBUNTU-CVE-2024-21386
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 2.42% · Oct 25, 2026
Brennan Conroy discovered that .NET with SignalR did not properly handle malicious clients. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-21386) Bahaa Naamneh discovered that .NET with OpenSSL support did not properly parse X509 certificates. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-21404)
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | dotnet6 | 22.04 | 6.0.108-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.109-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.110-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.111-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.113-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.116-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.118-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.119-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.120-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.121-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.122-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.123-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.124-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.125-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.126-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.127-0ubuntu1~22.04.1 | fixed |
| Ubuntu | dotnet7 | 22.04 | 7.0.105-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.107-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.108-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.109-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.110-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.111-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.112-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.113-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.114-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.115-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.116-0ubuntu1~22.04.1 | fixed |
| Ubuntu | dotnet8 | 22.04 | 8.0.102-8.0.2-0ubuntu1~22.04.1 | fixed |
| Ubuntu | dotnet6 | 22.04 | 6.0.108-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.109-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.110-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.111-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.113-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.116-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.118-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.119-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.120-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.121-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.122-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.123-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.124-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.125-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.126-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet6 | 22.04 | 6.0.127-0ubuntu1~22.04.1 | fixed |
| Ubuntu | dotnet7 | 22.04 | 7.0.105-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.107-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.108-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.109-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.110-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.111-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.112-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.113-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.114-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.115-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | dotnet7 | 22.04 | 7.0.116-0ubuntu1~22.04.1 | fixed |
| Ubuntu | dotnet8 | 22.04 | 8.0.102-8.0.2-0ubuntu1~22.04.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Ubuntu | dotnet6 | deb | 22.04 | 6.0.127-0ubuntu1~22.04.1 | Not reported | USN-6634-1 | Not reported |
| Ubuntu | dotnet7 | deb | 22.04 | 7.0.116-0ubuntu1~22.04.1 | Not reported | USN-6634-1 | Not reported |
| Ubuntu | dotnet8 | deb | 22.04 | 8.0.102-8.0.2-0ubuntu1~22.04.1 | Not reported | USN-6634-1 | Not reported |
| Ubuntu | dotnet6 | deb | 22.04 | 6.0.127-0ubuntu1~22.04.1 | Not reported | UBUNTU-CVE-2024-21386 | Not reported |
| Ubuntu | dotnet7 | deb | 22.04 | 7.0.116-0ubuntu1~22.04.1 | Not reported | UBUNTU-CVE-2024-21386 | Not reported |
| Ubuntu | dotnet8 | deb | 22.04 | 8.0.102-8.0.2-0ubuntu1~22.04.1 | Not reported | UBUNTU-CVE-2024-21386 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2024_0806.json]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-21386]
- [https://osv.dev/vulnerability/USN-6634-1]
- [https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-21386.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]