Debian Security Bug TrackerDEBIANCVE:CVE-2020-11501CVE-2020-11501
7.4 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.005 Low
EPSS
Percentile
76.0%
GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 ‘\0’ bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | gnutls28 | < 3.6.13-2 | gnutls28_3.6.13-2_all.deb |
| Debian | 11 | all | gnutls28 | < 3.6.13-2 | gnutls28_3.6.13-2_all.deb |
| Debian | 10 | all | gnutls28 | < 3.6.7-4+deb10u3 | gnutls28_3.6.7-4+deb10u3_all.deb |
| Debian | 999 | all | gnutls28 | < 3.6.13-2 | gnutls28_3.6.13-2_all.deb |
| Debian | 13 | all | gnutls28 | < 3.6.13-2 | gnutls28_3.6.13-2_all.deb |
Related
7.4 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.005 Low
EPSS
Percentile
76.0%