CVE-2020-11501

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

7.4 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — סבירות ניצול

3% (אחוזון 100) נכון ל-14/10/2026

CWE

CWE-330

מוצרים מושפעים

gnu: gnutls; canonical: ubuntu linux; debian: debian linux; opensuse: leap; fedoraproject: fedora

קישורים

• https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31 Vendor Advisory
• https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31 Vendor Advisory
• https://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e838‮… PatchThird Party Advisory
• https://gitlab.com/gnutls/gnutls/-/issues/960 Issue TrackingPatchThird Party Advisory
• https://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e838‮… PatchThird Party Advisory
• https://gitlab.com/gnutls/gnutls/-/issues/960 Issue TrackingPatchThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00015.html Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorap‮…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorap‮…
• https://security.gentoo.org/glsa/202004-06 Third Party Advisory