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Total
11 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-11501 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2021-07-21 | 5.8 MEDIUM | 7.4 HIGH |
| 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. | |||||
| CVE-2020-24659 | 2 Fedoraproject, Gnu | 2 Fedora, Gnutls | 2020-10-26 | 5.0 MEDIUM | 7.5 HIGH |
| 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. | |||||
| CVE-2020-13777 | 4 Canonical, Debian, Fedoraproject and 1 more | 4 Ubuntu Linux, Debian Linux, Fedora and 1 more | 2020-06-19 | 5.8 MEDIUM | 7.4 HIGH |
| GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application. | |||||
| CVE-2016-4456 | 1 Gnu | 1 Gnutls | 2020-06-16 | 5.0 MEDIUM | 7.5 HIGH |
| The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem. | |||||
| CVE-2015-0294 | 3 Debian, Gnu, Redhat | 3 Debian Linux, Gnutls, Enterprise Linux | 2020-01-31 | 5.0 MEDIUM | 7.5 HIGH |
| GnuTLS before 3.3.13 does not validate that the signature algorithms match when importing a certificate. | |||||
| CVE-2019-3829 | 2 Fedoraproject, Gnu | 2 Fedora, Gnutls | 2019-05-30 | 5.0 MEDIUM | 7.5 HIGH |
| A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7. A memory corruption (double free) vulnerability in the certificate verification API. Any client or server application that verifies X.509 certificates with GnuTLS 3.5.8 or later is affected. | |||||
| CVE-2019-3836 | 3 Fedoraproject, Gnu, Opensuse | 3 Fedora, Gnutls, Leap | 2019-05-30 | 5.0 MEDIUM | 7.5 HIGH |
| It was discovered in gnutls before version 3.6.7 upstream that there is an uninitialized pointer access in gnutls versions 3.6.3 or later which can be triggered by certain post-handshake messages. | |||||
| CVE-2017-5335 | 2 Gnu, Opensuse | 2 Gnutls, Leap | 2018-10-30 | 5.0 MEDIUM | 7.5 HIGH |
| The stream reading functions in lib/opencdk/read-packet.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to cause a denial of service (out-of-memory error and crash) via a crafted OpenPGP certificate. | |||||
| CVE-2017-7869 | 1 Gnu | 1 Gnutls | 2018-01-05 | 5.0 MEDIUM | 7.5 HIGH |
| GnuTLS before 2017-02-20 has an out-of-bounds write caused by an integer overflow and heap-based buffer overflow related to the cdk_pkt_read function in opencdk/read-packet.c. This issue (which is a subset of the vendor's GNUTLS-SA-2017-3 report) is fixed in 3.5.10. | |||||
| CVE-2017-7507 | 1 Gnu | 1 Gnutls | 2018-01-05 | 5.0 MEDIUM | 7.5 HIGH |
| GnuTLS version 3.5.12 and earlier is vulnerable to a NULL pointer dereference while decoding a status response TLS extension with valid contents. This could lead to a crash of the GnuTLS server application. | |||||
| CVE-2016-7444 | 1 Gnu | 1 Gnutls | 2018-01-05 | 5.0 MEDIUM | 7.5 HIGH |
| The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length of an OCSP response, which might allow remote attackers to bypass an intended certificate validation mechanism via vectors involving trailing bytes left by gnutls_malloc. | |||||