mod_gnutls
by mod_gnutls
Source repositories
CVEs (77)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2017-5334 | Cri | 0.66 | 9.8 | 0.33 | Mar 24, 2017 | 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. | ||
| CVE-2021-20232 | Cri | 0.64 | 9.8 | 0.03 | Mar 12, 2021 | A flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potential consequences. | ||
| CVE-2017-5337 | Cri | 0.64 | 9.8 | 0.06 | Mar 24, 2017 | 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. | ||
| CVE-2017-5336 | Cri | 0.64 | 9.8 | 0.07 | Mar 24, 2017 | 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. | ||
| CVE-2021-20231 | Cri | 0.57 | 9.8 | 0.04 | Mar 12, 2021 | A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences. | ||
| CVE-2020-13777 | Hig | 0.50 | 7.4 | 0.22 | Jun 4, 2020 | 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… | ||
| CVE-2026-1584 | Hig | 0.49 | 7.5 | 0.01 | Apr 9, 2026 | A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the… | ||
| CVE-2024-0567 | Hig | 0.49 | 7.5 | 0.01 | Jan 16, 2024 | 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… | ||
| CVE-2024-0553 | Hig | 0.49 | 7.5 | 0.02 | Jan 16, 2024 | 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… | ||
| CVE-2022-2509 | Hig | 0.49 | 7.5 | 0.02 | Aug 1, 2022 | 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. | ||
| CVE-2020-24659 | Hig | 0.49 | 7.5 | 0.04 | Sep 4, 2020 | 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… | ||
| CVE-2015-0294 | Hig | 0.49 | 7.5 | 0.02 | Jan 27, 2020 | GnuTLS before 3.3.13 does not validate that the signature algorithms match when importing a certificate. | ||
| CVE-2009-5144 | Hig | 0.49 | 7.5 | 0.01 | Feb 3, 2018 | mod-gnutls does not validate client certificates when "GnuTLSClientVerify require" is set in a directory context, which allows remote attackers to spoof clients via a crafted certificate. | ||
| CVE-2016-4456 | Hig | 0.49 | 7.5 | 0.02 | Aug 8, 2017 | The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem. | ||
| CVE-2017-5335 | Hig | 0.49 | 7.5 | 0.08 | Mar 24, 2017 | 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-2016-7444 | Hig | 0.49 | 7.5 | 0.02 | Sep 27, 2016 | 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… | ||
| CVE-2020-11501 | Hig | 0.48 | 7.4 | 0.03 | Apr 3, 2020 | 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… | ||
| CVE-2026-42013 | Hig | 0.46 | 8.2 | 0.01 | May 26, 2026 | A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This could allow a remote attacker to bypass proper certificate validation,… | ||
| CVE-2026-33846 | Hig | 0.42 | 7.5 | 0.01 | May 4, 2026 | A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in merge_handshake_packet() where incoming handshake fragments are matched and merged based solely on handshake type, without validating that the… | ||
| CVE-2026-33845 | Hig | 0.42 | 7.5 | 0.01 | Apr 30, 2026 | A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of… |
- risk 0.66cvss 9.8epss 0.33
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.
- risk 0.64cvss 9.8epss 0.03
A flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potential consequences.
- risk 0.64cvss 9.8epss 0.06
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.
- risk 0.64cvss 9.8epss 0.07
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.
- risk 0.57cvss 9.8epss 0.04
A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.
- risk 0.50cvss 7.4epss 0.22
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…
- risk 0.49cvss 7.5epss 0.01
A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the…
- risk 0.49cvss 7.5epss 0.01
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…
- risk 0.49cvss 7.5epss 0.02
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…
- risk 0.49cvss 7.5epss 0.02
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.
- risk 0.49cvss 7.5epss 0.04
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…
- risk 0.49cvss 7.5epss 0.02
GnuTLS before 3.3.13 does not validate that the signature algorithms match when importing a certificate.
- risk 0.49cvss 7.5epss 0.01
mod-gnutls does not validate client certificates when "GnuTLSClientVerify require" is set in a directory context, which allows remote attackers to spoof clients via a crafted certificate.
- risk 0.49cvss 7.5epss 0.02
The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.
- risk 0.49cvss 7.5epss 0.08
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.
- risk 0.49cvss 7.5epss 0.02
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…
- risk 0.48cvss 7.4epss 0.03
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…
- risk 0.46cvss 8.2epss 0.01
A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This could allow a remote attacker to bypass proper certificate validation,…
- risk 0.42cvss 7.5epss 0.01
A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in merge_handshake_packet() where incoming handshake fragments are matched and merged based solely on handshake type, without validating that the…
- risk 0.42cvss 7.5epss 0.01
A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of…
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