UBUNTU-CVE-2020-24659
- Source
- https://ubuntu.com/security/CVE-2020-24659
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-24659.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-24659
- Upstream
- Downstream
- Related
- Published
- 2020-09-04T15:15:00Z
- Modified
- 2026-04-22T12:34:53Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.
- References
Affected packages
Ubuntu:20.04:LTS / gnutls28
Package
- Name
- gnutls28
- Purl
- pkg:deb/ubuntu/gnutls28@3.6.13-2ubuntu1.3?arch=source&distro=focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed3.6.13-2ubuntu1.3
Affected versions
3.*
3.6.9-5ubuntu1
3.6.9-5ubuntu2
3.6.10-5
3.6.11.1-2
3.6.11.1-2ubuntu2
3.6.13-2ubuntu1
3.6.13-2ubuntu1.1
3.6.13-2ubuntu1.2
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gnutls-bin",
"binary_version": "3.6.13-2ubuntu1.3"
},
{
"binary_name": "guile-gnutls",
"binary_version": "3.6.13-2ubuntu1.3"
},
{
"binary_name": "libgnutls-dane0",
"binary_version": "3.6.13-2ubuntu1.3"
},
{
"binary_name": "libgnutls-openssl27",
"binary_version": "3.6.13-2ubuntu1.3"
},
{
"binary_name": "libgnutls30",
"binary_version": "3.6.13-2ubuntu1.3"
},
{
"binary_name": "libgnutlsxx28",
"binary_version": "3.6.13-2ubuntu1.3"
}
]
}