Filtered by vendor Openssl
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Total
276 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2009-4355 | 2 Openssl, Redhat | 2 Openssl, Openssl | 2026-04-23 | 5.0 MEDIUM | N/A |
| Memory leak in the zlib_stateful_finish function in crypto/comp/c_zlib.c in OpenSSL 0.9.8l and earlier and 1.0.0 Beta through Beta 4 allows remote attackers to cause a denial of service (memory consumption) via vectors that trigger incorrect calls to the CRYPTO_cleanup_all_ex_data function, as demonstrated by use of SSLv3 and PHP with the Apache HTTP Server, a related issue to CVE-2008-1678. | |||||
| CVE-2009-0653 | 1 Openssl | 1 Openssl | 2026-04-23 | 7.5 HIGH | N/A |
| OpenSSL, probably 0.9.6, does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack, a related issue to CVE-2002-0970. | |||||
| CVE-2006-2940 | 1 Openssl | 1 Openssl | 2026-04-23 | 7.8 HIGH | N/A |
| OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows attackers to cause a denial of service (CPU consumption) via parasitic public keys with large (1) "public exponent" or (2) "public modulus" values in X.509 certificates that require extra time to process when using RSA signature verification. | |||||
| CVE-2006-4343 | 3 Canonical, Debian, Openssl | 3 Ubuntu Linux, Debian Linux, Openssl | 2026-04-23 | 4.3 MEDIUM | N/A |
| The get_server_hello function in the SSLv2 client code in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows remote servers to cause a denial of service (client crash) via unknown vectors that trigger a null pointer dereference. | |||||
| CVE-2009-0590 | 2 Debian, Openssl | 2 Debian Linux, Openssl | 2026-04-23 | 5.0 MEDIUM | N/A |
| The ASN1_STRING_print_ex function in OpenSSL before 0.9.8k allows remote attackers to cause a denial of service (invalid memory access and application crash) via vectors that trigger printing of a (1) BMPString or (2) UniversalString with an invalid encoded length. | |||||
| CVE-2008-0166 | 3 Canonical, Debian, Openssl | 3 Ubuntu Linux, Debian Linux, Openssl | 2026-04-23 | 7.8 HIGH | 7.5 HIGH |
| OpenSSL 0.9.8c-1 up to versions before 0.9.8g-9 on Debian-based operating systems uses a random number generator that generates predictable numbers, which makes it easier for remote attackers to conduct brute force guessing attacks against cryptographic keys. | |||||
| CVE-2009-1390 | 3 Gnu, Mutt, Openssl | 3 Gnutls, Mutt, Openssl | 2026-04-23 | 6.8 MEDIUM | N/A |
| Mutt 1.5.19, when linked against (1) OpenSSL (mutt_ssl.c) or (2) GnuTLS (mutt_ssl_gnutls.c), allows connections when only one TLS certificate in the chain is accepted instead of verifying the entire chain, which allows remote attackers to spoof trusted servers via a man-in-the-middle attack. | |||||
| CVE-2009-2409 | 3 Gnu, Mozilla, Openssl | 3 Gnutls, Network Security Services, Openssl | 2026-04-23 | 5.1 MEDIUM | N/A |
| The Network Security Services (NSS) library before 3.12.3, as used in Firefox; GnuTLS before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other products support MD2 with X.509 certificates, which might allow remote attackers to spoof certificates by using MD2 design flaws to generate a hash collision in less than brute-force time. NOTE: the scope of this issue is currently limited because the amount of computation required is still large. | |||||
| CVE-2007-5135 | 1 Openssl | 1 Openssl | 2026-04-23 | 6.8 MEDIUM | N/A |
| Off-by-one error in the SSL_get_shared_ciphers function in OpenSSL 0.9.7 up to 0.9.7l, and 0.9.8 up to 0.9.8f, might allow remote attackers to execute arbitrary code via a crafted packet that triggers a one-byte buffer underflow. NOTE: this issue was introduced as a result of a fix for CVE-2006-3738. As of 20071012, it is unknown whether code execution is possible. | |||||
| CVE-2014-0160 | 13 Broadcom, Canonical, Debian and 10 more | 35 Symantec Messaging Gateway, Ubuntu Linux, Debian Linux and 32 more | 2026-04-21 | 5.0 MEDIUM | 7.5 HIGH |
| The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remote attackers to obtain sensitive information from process memory via crafted packets that trigger a buffer over-read, as demonstrated by reading private keys, related to d1_both.c and t1_lib.c, aka the Heartbleed bug. | |||||
| CVE-2021-3712 | 7 Debian, Mcafee, Netapp and 4 more | 32 Debian Linux, Epolicy Orchestrator, Clustered Data Ontap and 29 more | 2026-04-16 | 5.8 MEDIUM | 7.4 HIGH |
| ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL's own "d2i" functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the "data" and "length" fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the "data" field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack). It could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y). | |||||
| CVE-2021-23840 | 7 Debian, Fujitsu, Mcafee and 4 more | 27 Debian Linux, M10-1, M10-1 Firmware and 24 more | 2026-04-16 | 5.0 MEDIUM | 7.5 HIGH |
| Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). | |||||
| CVE-2020-1968 | 5 Canonical, Debian, Fujitsu and 2 more | 25 Ubuntu Linux, Debian Linux, M10-1 and 22 more | 2026-04-16 | 4.3 MEDIUM | 3.7 LOW |
| The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v). | |||||
| CVE-2003-0131 | 1 Openssl | 1 Openssl | 2026-04-16 | 7.5 HIGH | N/A |
| The SSL and TLS components for OpenSSL 0.9.6i and earlier, 0.9.7, and 0.9.7a allow remote attackers to perform an unauthorized RSA private key operation via a modified Bleichenbacher attack that uses a large number of SSL or TLS connections using PKCS #1 v1.5 padding that cause OpenSSL to leak information regarding the relationship between ciphertext and the associated plaintext, aka the "Klima-Pokorny-Rosa attack." | |||||
| CVE-2003-0545 | 1 Openssl | 1 Openssl | 2026-04-16 | 10.0 HIGH | 9.8 CRITICAL |
| Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an SSL client certificate with a certain invalid ASN.1 encoding. | |||||
| CVE-2005-1797 | 1 Openssl | 1 Openssl | 2026-04-16 | 5.1 MEDIUM | N/A |
| The design of Advanced Encryption Standard (AES), aka Rijndael, allows remote attackers to recover AES keys via timing attacks on S-box lookups, which are difficult to perform in constant time in AES implementations. | |||||
| CVE-2002-0656 | 3 Apple, Openssl, Oracle | 5 Mac Os X, Openssl, Application Server and 2 more | 2026-04-16 | 7.5 HIGH | N/A |
| Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3. | |||||
| CVE-2002-1568 | 1 Openssl | 1 Openssl | 2026-04-16 | 5.0 MEDIUM | N/A |
| OpenSSL 0.9.6e uses assertions when detecting buffer overflow attacks instead of less severe mechanisms, which allows remote attackers to cause a denial of service (crash) via certain messages that cause OpenSSL to abort from a failed assertion, as demonstrated using SSLv2 CLIENT_MASTER_KEY messages, which are not properly handled in s2_srvr.c. | |||||
| CVE-2003-0544 | 1 Openssl | 1 Openssl | 2026-04-16 | 5.0 MEDIUM | N/A |
| OpenSSL 0.9.6 and 0.9.7 does not properly track the number of characters in certain ASN.1 inputs, which allows remote attackers to cause a denial of service (crash) via an SSL client certificate that causes OpenSSL to read past the end of a buffer when the long form is used. | |||||
| CVE-2004-0079 | 23 4d, Apple, Avaya and 20 more | 66 Webstar, Mac Os X, Mac Os X Server and 63 more | 2026-04-16 | 5.0 MEDIUM | 7.5 HIGH |
| The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference. | |||||