Filtered by vendor Openssl
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Total
242 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2009-0590 | 2 Debian, Openssl | 2 Debian Linux, Openssl | 2020-11-03 | 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-2019-1549 | 1 Openssl | 1 Openssl | 2020-10-20 | 5.0 MEDIUM | 5.3 MEDIUM |
| OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). | |||||
| CVE-2009-3767 | 4 Apple, Fedoraproject, Openldap and 1 more | 4 Mac Os X, Fedora, Openldap and 1 more | 2020-10-14 | 4.3 MEDIUM | N/A |
| libraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408. | |||||
| CVE-1999-0428 | 1 Openssl | 1 Openssl | 2020-10-13 | 7.5 HIGH | N/A |
| OpenSSL and SSLeay allow remote attackers to reuse SSL sessions and bypass access controls. | |||||
| CVE-2020-7041 | 4 Fedoraproject, Openfortivpn Project, Openssl and 1 more | 5 Fedora, Openfortivpn, Openssl and 2 more | 2020-10-09 | 5.0 MEDIUM | 5.3 MEDIUM |
| An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because an X509_check_host negative error code is interpreted as a successful return value. | |||||
| CVE-2020-7043 | 4 Fedoraproject, Openfortivpn Project, Openssl and 1 more | 5 Fedora, Openfortivpn, Openssl and 2 more | 2020-10-09 | 6.4 MEDIUM | 9.1 CRITICAL |
| An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack. | |||||
| CVE-2018-5407 | 7 Canonical, Debian, Nodejs and 4 more | 20 Ubuntu Linux, Debian Linux, Node.js and 17 more | 2020-09-18 | 1.9 LOW | 4.7 MEDIUM |
| Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'. | |||||
| CVE-2018-0733 | 1 Openssl | 1 Openssl | 2020-08-24 | 4.3 MEDIUM | 5.9 MEDIUM |
| Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). | |||||
| CVE-2009-3766 | 2 Mutt, Openssl | 2 Mutt, Openssl | 2019-11-07 | 6.8 MEDIUM | N/A |
| mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify the domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate. | |||||
| CVE-2013-0169 | 3 Openssl, Oracle, Polarssl | 3 Openssl, Openjdk, Polarssl | 2019-10-09 | 2.6 LOW | N/A |
| The TLS protocol 1.1 and 1.2 and the DTLS protocol 1.0 and 1.2, as used in OpenSSL, OpenJDK, PolarSSL, and other products, do not properly consider timing side-channel attacks on a MAC check requirement during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, aka the "Lucky Thirteen" issue. | |||||
| CVE-2017-3737 | 2 Debian, Openssl | 2 Debian Linux, Openssl | 2019-10-02 | 4.3 MEDIUM | 5.9 MEDIUM |
| 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-2017-3730 | 2 Openssl, Oracle | 7 Openssl, Agile Engineering Data Management, Communications Application Session Controller and 4 more | 2019-04-25 | 5.0 MEDIUM | 7.5 HIGH |
| 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-2017-3733 | 2 Hp, Openssl | 2 Operations Agent, Openssl | 2019-04-23 | 5.0 MEDIUM | 7.5 HIGH |
| 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-2017-3736 | 1 Openssl | 1 Openssl | 2019-04-23 | 4.0 MEDIUM | 6.5 MEDIUM |
| There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. 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 DH are considered just feasible (although very difficult) 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 very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen. | |||||
| CVE-2015-1793 | 2 Openssl, Oracle | 4 Openssl, Jd Edwards Enterpriseone Tools, Opus 10g Ethernet Switch Family and 1 more | 2018-11-30 | 6.4 MEDIUM | 6.5 MEDIUM |
| The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate. | |||||
| CVE-2003-0851 | 2 Cisco, Openssl | 5 Css11000 Content Services Switch, Ios, Pix Firewall and 2 more | 2018-10-30 | 5.0 MEDIUM | N/A |
| OpenSSL 0.9.6k allows remote attackers to cause a denial of service (crash via large recursion) via malformed ASN.1 sequences. | |||||
| CVE-2003-0131 | 1 Openssl | 1 Openssl | 2018-10-19 | 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-2003-0147 | 3 Openpkg, Openssl, Stunnel | 3 Openpkg, Openssl, Stunnel | 2018-10-19 | 5.0 MEDIUM | N/A |
| OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms ("Karatsuba" and normal). | |||||
| CVE-2006-2940 | 1 Openssl | 1 Openssl | 2018-10-18 | 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-2006-2937 | 1 Openssl | 1 Openssl | 2018-10-18 | 7.8 HIGH | N/A |
| OpenSSL 0.9.7 before 0.9.7l and 0.9.8 before 0.9.8d allows remote attackers to cause a denial of service (infinite loop and memory consumption) via malformed ASN.1 structures that trigger an improperly handled error condition. | |||||