Filtered by vendor Openssl
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Total
268 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2017-3737 | 3 Debian, Openssl, Redhat | 4 Debian Linux, Openssl, Enterprise Linux and 1 more | 2025-04-20 | N/A |
| OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected. | ||||
| CVE-2017-3738 | 4 Debian, Nodejs, Openssl and 1 more | 5 Debian Linux, Node.js, Openssl and 2 more | 2025-04-20 | 5.9 Medium |
| There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH1024 are considered just feasible, because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. OpenSSL version 1.0.2-1.0.2m and 1.1.0-1.1.0g are affected. Fixed in OpenSSL 1.0.2n. Due to the low severity of this issue we are not issuing a new release of OpenSSL 1.1.0 at this time. The fix will be included in OpenSSL 1.1.0h when it becomes available. The fix is also available in commit e502cc86d in the OpenSSL git repository. | ||||
| CVE-2017-3731 | 3 Nodejs, Openssl, Redhat | 4 Node.js, Openssl, Enterprise Linux and 1 more | 2025-04-20 | 7.5 High |
| If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k. | ||||
| CVE-2016-8610 | 7 Debian, Fujitsu, Netapp and 4 more | 55 Debian Linux, M10-1, M10-1 Firmware and 52 more | 2025-04-20 | 7.5 High |
| A denial of service flaw was found in OpenSSL 0.9.8, 1.0.1, 1.0.2 through 1.0.2h, and 1.1.0 in the way the TLS/SSL protocol defined processing of ALERT packets during a connection handshake. A remote attacker could use this flaw to make a TLS/SSL server consume an excessive amount of CPU and fail to accept connections from other clients. | ||||
| CVE-2017-3730 | 2 Openssl, Oracle | 7 Openssl, Agile Engineering Data Management, Communications Application Session Controller and 4 more | 2025-04-20 | N/A |
| In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack. | ||||
| CVE-2016-7055 | 3 Nodejs, Openssl, Redhat | 3 Node.js, Openssl, Jboss Core Services | 2025-04-20 | 5.9 Medium |
| There is a carry propagating bug in the Broadwell-specific Montgomery multiplication procedure in OpenSSL 1.0.2 and 1.1.0 before 1.1.0c that handles input lengths divisible by, but longer than 256 bits. Analysis suggests that attacks against RSA, DSA and DH private keys are impossible. This is because the subroutine in question is not used in operations with the private key itself and an input of the attacker's direct choice. Otherwise the bug can manifest itself as transient authentication and key negotiation failures or reproducible erroneous outcome of public-key operations with specially crafted input. Among EC algorithms only Brainpool P-512 curves are affected and one presumably can attack ECDH key negotiation. Impact was not analyzed in detail, because pre-requisites for attack are considered unlikely. Namely multiple clients have to choose the curve in question and the server has to share the private key among them, neither of which is default behaviour. Even then only clients that chose the curve will be affected. | ||||
| CVE-2017-3733 | 2 Hp, Openssl | 2 Operations Agent, Openssl | 2025-04-20 | N/A |
| During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake (or vice-versa) then this can cause OpenSSL 1.1.0 before 1.1.0e to crash (dependent on ciphersuite). Both clients and servers are affected. | ||||
| CVE-2016-7052 | 3 Nodejs, Novell, Openssl | 3 Node.js, Suse Linux Enterprise Module For Web Scripting, Openssl | 2025-04-12 | 7.5 High |
| crypto/x509/x509_vfy.c in OpenSSL 1.0.2i allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by triggering a CRL operation. | ||||
| CVE-2016-6305 | 1 Openssl | 1 Openssl | 2025-04-12 | N/A |
| The ssl3_read_bytes function in record/rec_layer_s3.c in OpenSSL 1.1.0 before 1.1.0a allows remote attackers to cause a denial of service (infinite loop) by triggering a zero-length record in an SSL_peek call. | ||||
| CVE-2015-0208 | 1 Openssl | 1 Openssl | 2025-04-12 | N/A |
| The ASN.1 signature-verification implementation in the rsa_item_verify function in crypto/rsa/rsa_ameth.c in OpenSSL 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted RSA PSS parameters to an endpoint that uses the certificate-verification feature. | ||||
| CVE-2015-0293 | 2 Openssl, Redhat | 8 Openssl, Enterprise Linux, Jboss Enterprise Application Platform and 5 more | 2025-04-12 | N/A |
| The SSLv2 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (s2_lib.c assertion failure and daemon exit) via a crafted CLIENT-MASTER-KEY message. | ||||
| CVE-2016-2181 | 3 Openssl, Oracle, Redhat | 3 Openssl, Linux, Enterprise Linux | 2025-04-12 | N/A |
| The Anti-Replay feature in the DTLS implementation in OpenSSL before 1.1.0 mishandles early use of a new epoch number in conjunction with a large sequence number, which allows remote attackers to cause a denial of service (false-positive packet drops) via spoofed DTLS records, related to rec_layer_d1.c and ssl3_record.c. | ||||
| CVE-2015-0289 | 2 Openssl, Redhat | 3 Openssl, Enterprise Linux, Storage | 2025-04-12 | N/A |
| The PKCS#7 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a does not properly handle a lack of outer ContentInfo, which allows attackers to cause a denial of service (NULL pointer dereference and application crash) by leveraging an application that processes arbitrary PKCS#7 data and providing malformed data with ASN.1 encoding, related to crypto/pkcs7/pk7_doit.c and crypto/pkcs7/pk7_lib.c. | ||||
| CVE-2016-0701 | 1 Openssl | 1 Openssl | 2025-04-12 | N/A |
| The DH_check_pub_key function in crypto/dh/dh_check.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriate for Diffie-Hellman (DH) key exchange, which makes it easier for remote attackers to discover a private DH exponent by making multiple handshakes with a peer that chose an inappropriate number, as demonstrated by a number in an X9.42 file. | ||||
| CVE-2016-2179 | 3 Openssl, Oracle, Redhat | 3 Openssl, Linux, Enterprise Linux | 2025-04-12 | N/A |
| The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of-order messages, which allows remote attackers to cause a denial of service (memory consumption) by maintaining many crafted DTLS sessions simultaneously, related to d1_lib.c, statem_dtls.c, statem_lib.c, and statem_srvr.c. | ||||
| CVE-2016-2842 | 2 Openssl, Redhat | 4 Openssl, Enterprise Linux, Jboss Core Services and 1 more | 2025-04-12 | N/A |
| The doapr_outch function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not verify that a certain memory allocation succeeds, which allows remote attackers to cause a denial of service (out-of-bounds write or memory consumption) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-0799. | ||||
| CVE-2016-6302 | 3 Openssl, Oracle, Redhat | 5 Openssl, Linux, Solaris and 2 more | 2025-04-12 | N/A |
| The tls_decrypt_ticket function in ssl/t1_lib.c in OpenSSL before 1.1.0 does not consider the HMAC size during validation of the ticket length, which allows remote attackers to cause a denial of service via a ticket that is too short. | ||||
| CVE-2016-6303 | 2 Nodejs, Openssl | 2 Node.js, Openssl | 2025-04-12 | 9.8 Critical |
| Integer overflow in the MDC2_Update function in crypto/mdc2/mdc2dgst.c in OpenSSL before 1.1.0 allows remote attackers to cause a denial of service (out-of-bounds write and application crash) or possibly have unspecified other impact via unknown vectors. | ||||
| CVE-2016-6306 | 7 Canonical, Debian, Hp and 4 more | 11 Ubuntu Linux, Debian Linux, Icewall Federation Agent and 8 more | 2025-04-12 | 5.9 Medium |
| The certificate parser in OpenSSL before 1.0.1u and 1.0.2 before 1.0.2i might allow remote attackers to cause a denial of service (out-of-bounds read) via crafted certificate operations, related to s3_clnt.c and s3_srvr.c. | ||||
| CVE-2016-2178 | 7 Canonical, Debian, Nodejs and 4 more | 10 Ubuntu Linux, Debian Linux, Node.js and 7 more | 2025-04-12 | 5.5 Medium |
| The dsa_sign_setup function in crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does not properly ensure the use of constant-time operations, which makes it easier for local users to discover a DSA private key via a timing side-channel attack. | ||||