Search for packages
| purl | pkg:deb/debian/gnutls28@3.6.7-4%2Bdeb10u8 |
| Next non-vulnerable version | 3.7.9-2+deb12u4 |
| Latest non-vulnerable version | 3.7.9-2+deb12u4 |
| Risk | 4.4 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-2312-ktjb-zbee
Aliases: CVE-2024-12243 |
A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition. |
Affected by 0 other vulnerabilities. |
|
VCID-43bp-nbru-s3f6
Aliases: CVE-2021-4209 |
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. |
Affected by 9 other vulnerabilities. |
|
VCID-4tt7-q5qy-3udj
Aliases: CVE-2024-28835 GNUTLS-SA-2024-01-23 |
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. |
Affected by 0 other vulnerabilities. |
|
VCID-71jj-shy8-rbee
Aliases: CVE-2025-32988 |
A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject Alternative Name (SAN) entries containing an otherName. If the type-id OID is invalid or malformed, GnuTLS will call asn1_delete_structure() on an ASN.1 node it does not own, leading to a double-free condition when the parent function or caller later attempts to free the same structure. This vulnerability can be triggered using only public GnuTLS APIs and may result in denial of service or memory corruption, depending on allocator behavior. |
Affected by 0 other vulnerabilities. |
|
VCID-7red-s61z-nfbp
Aliases: CVE-2024-0567 |
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. |
Affected by 7 other vulnerabilities. |
|
VCID-96eb-39cr-8ye6
Aliases: CVE-2024-28834 GNUTLS-SA-2023-12-04 |
A flaw was found in GnuTLS. The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such as when using the GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable step in nonce size from 513 to 512 bits, exposing a potential timing side-channel. |
Affected by 0 other vulnerabilities. |
|
VCID-b6ws-79hy-57dz
Aliases: CVE-2021-20231 CVE-2021-20232 GNUTLS-SA-2021-03-10 |
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. |
Affected by 9 other vulnerabilities. |
|
VCID-ff27-ufpk-rkbe
Aliases: CVE-2025-6395 |
A NULL pointer dereference flaw was found in the GnuTLS software in _gnutls_figure_common_ciphersuite(). |
Affected by 0 other vulnerabilities. |
|
VCID-fx82-w6d8-7fds
Aliases: CVE-2020-11501 GNUTLS-SA-2020-03-31 |
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. |
Affected by 9 other vulnerabilities. |
|
VCID-hehk-phng-n3bu
Aliases: CVE-2023-0361 |
A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection. |
Affected by 9 other vulnerabilities. |
|
VCID-hxyg-8211-puc7
Aliases: CVE-2025-32990 |
A heap-buffer-overflow (off-by-one) flaw was found in the GnuTLS software in the template parsing logic within the certtool utility. When it reads certain settings from a template file, it allows an attacker to cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and a denial-of-service (DoS) that could potentially crash the system. |
Affected by 0 other vulnerabilities. |
|
VCID-kkf9-tpvd-5bad
Aliases: CVE-2020-13777 GNUTLS-SA-2020-06-03 |
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. |
Affected by 9 other vulnerabilities. |
|
VCID-r2jk-zuzp-rfek
Aliases: CVE-2022-2509 GNUTLS-SA-2022-07-07 |
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. |
Affected by 9 other vulnerabilities. |
|
VCID-swus-ze2b-kugb
Aliases: CVE-2024-0553 |
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. |
Affected by 7 other vulnerabilities. |
|
VCID-u8sg-wg5a-9kf7
Aliases: CVE-2023-5981 |
A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding. |
Affected by 7 other vulnerabilities. |
|
VCID-xsf6-1qzj-t3gm
Aliases: CVE-2020-24659 GNUTLS-SA-2020-09-04 |
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 path, where the gnutls_deinit function is called after detecting a handshake failure. |
Affected by 9 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-1jev-z4fq-83dp | 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. |
CVE-2018-10844
|
| VCID-8wff-wrbj-fuc8 |
CVE-2017-7507
|
|
| VCID-a465-1u5b-mugp | 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-2019-3836
|
| VCID-fx82-w6d8-7fds | 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-2020-11501
GNUTLS-SA-2020-03-31 |
| VCID-fzps-jr7y-wfbu | 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-2019-3829
|
| VCID-k87v-fdfy-m7h1 | 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. |
CVE-2018-10845
|
| VCID-kkf9-tpvd-5bad | 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-2020-13777
GNUTLS-SA-2020-06-03 |
| VCID-sf4r-1fct-fkgg | 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. |
CVE-2018-10846
|
| VCID-vbr8-9fcm-1qha | 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. |
CVE-2018-16868
|