cpe:2.3:a:gnu:gnutls:3.0.5:*:*:*:*:*:*:*
A flaw has been discovered in GnuTLS where an application crash can be induced when attempting to verify a specially crafted .pem bundle using the "certtool --verify-chain" command.
Max CVSS
5.0
EPSS Score
0.05%
Published
2024-03-21
Updated
2024-03-21
A vulnerability was found in GnuTLS, where a cockpit (which uses gnuTLS) rejects a certificate chain with distributed trust. This issue occurs when validating a certificate chain with cockpit-certificate-ensure. This flaw allows an unauthenticated, remote client or attacker to initiate a denial of service attack.
Max CVSS
7.5
EPSS Score
0.08%
Published
2024-01-16
Updated
2024-03-05
A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange, potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981.
Max CVSS
7.5
EPSS Score
0.82%
Published
2024-01-16
Updated
2024-03-25
A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.
Max CVSS
7.5
EPSS Score
0.18%
Published
2022-08-01
Updated
2022-08-19
A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.
Max CVSS
6.5
EPSS Score
0.19%
Published
2022-08-24
Updated
2022-10-27
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.
Max CVSS
7.5
EPSS Score
0.39%
Published
2020-09-04
Updated
2023-02-27
A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.
Max CVSS
5.6
EPSS Score
0.05%
Published
2018-12-03
Updated
2022-11-30
A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets.
Max CVSS
5.6
EPSS Score
0.05%
Published
2018-08-22
Updated
2023-02-13
It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets.
Max CVSS
5.9
EPSS Score
0.59%
Published
2018-08-22
Updated
2023-02-13
It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets.
Max CVSS
5.9
EPSS Score
0.40%
Published
2018-08-22
Updated
2023-02-13
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.
Max CVSS
7.5
EPSS Score
0.54%
Published
2017-04-14
Updated
2018-01-05
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.
Max CVSS
7.5
EPSS Score
28.45%
Published
2017-06-16
Updated
2018-01-05
Multiple heap-based buffer overflows in the read_attribute function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to have unspecified impact via a crafted OpenPGP certificate.
Max CVSS
9.8
EPSS Score
0.90%
Published
2017-03-24
Updated
2018-10-30
Stack-based buffer overflow in the cdk_pk_get_keyid function in lib/opencdk/pubkey.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via a crafted OpenPGP certificate.
Max CVSS
9.8
EPSS Score
0.91%
Published
2017-03-24
Updated
2018-10-30
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.
Max CVSS
7.5
EPSS Score
2.39%
Published
2017-03-24
Updated
2018-10-30
Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via crafted policy language information in an X.509 certificate with a Proxy Certificate Information extension.
Max CVSS
9.8
EPSS Score
1.69%
Published
2017-03-24
Updated
2018-10-30
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.
Max CVSS
7.5
EPSS Score
0.62%
Published
2016-09-27
Updated
2018-01-05
Double free vulnerability in lib/x509/x509_ext.c in GnuTLS before 3.3.14 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted CRL distribution point.
Max CVSS
7.5
EPSS Score
3.30%
Published
2015-09-02
Updated
2016-12-22
GnuTLS before 3.3.13 does not validate that the signature algorithms match when importing a certificate.
Max CVSS
7.5
EPSS Score
0.58%
Published
2020-01-27
Updated
2020-01-31
GnuTLS before 3.1.0 does not verify that the RSA PKCS #1 signature algorithm matches the signature algorithm in the certificate, which allows remote attackers to conduct downgrade attacks via unspecified vectors.
Max CVSS
5.0
EPSS Score
0.46%
Published
2015-03-24
Updated
2018-01-05
The _gnutls_ecc_ansi_x963_export function in gnutls_ecc.c in GnuTLS 3.x before 3.1.28, 3.2.x before 3.2.20, and 3.3.x before 3.3.10 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted (1) Elliptic Curve Cryptography (ECC) certificate or (2) certificate signing requests (CSR), related to generating key IDs.
Max CVSS
5.0
EPSS Score
1.11%
Published
2014-11-13
Updated
2018-10-30
The (1) asn1_read_value_type and (2) asn1_read_value functions in GNU Libtasn1 before 3.6 allows context-dependent attackers to cause a denial of service (NULL pointer dereference and crash) via a NULL value in an ivalue argument.
Max CVSS
5.0
EPSS Score
0.37%
Published
2014-06-05
Updated
2020-11-16
The asn1_get_bit_der function in GNU Libtasn1 before 3.6 does not properly report an error when a negative bit length is identified, which allows context-dependent attackers to cause out-of-bounds access via crafted ASN.1 data.
Max CVSS
7.5
EPSS Score
0.73%
Published
2014-06-05
Updated
2020-11-16
Multiple unspecified vulnerabilities in the DER decoder in GNU Libtasn1 before 3.6, as used in GnuTLS, allow remote attackers to cause a denial of service (out-of-bounds read) via crafted ASN.1 data.
Max CVSS
5.0
EPSS Score
1.96%
Published
2014-06-05
Updated
2020-11-16
Buffer overflow in the read_server_hello function in lib/gnutls_handshake.c in GnuTLS before 3.1.25, 3.2.x before 3.2.15, and 3.3.x before 3.3.4 allows remote servers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a long session id in a ServerHello message.
Max CVSS
6.8
EPSS Score
70.78%
Published
2014-06-03
Updated
2017-12-29
34 vulnerabilities found
1 2
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