Vulnerabilities > Openssl

DATE CVE VULNERABILITY TITLE RISK
2015-06-12 CVE-2015-1789 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
The X509_cmp_time function in crypto/x509/x509_vfy.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted length field in ASN1_TIME data, as demonstrated by an attack against a server that supports client authentication with a custom verification callback.
network
low complexity
openssl oracle CWE-119
7.5
2015-05-21 CVE-2015-4000 Cryptographic Issues vulnerability in multiple products
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.
3.7
2014-10-15 CVE-2014-3566 Cryptographic Issues vulnerability in multiple products
The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, aka the "POODLE" issue.
3.4
2014-06-05 CVE-2014-0224 Inadequate Encryption Strength vulnerability in multiple products
OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly restrict processing of ChangeCipherSpec messages, which allows man-in-the-middle attackers to trigger use of a zero-length master key in certain OpenSSL-to-OpenSSL communications, and consequently hijack sessions or obtain sensitive information, via a crafted TLS handshake, aka the "CCS Injection" vulnerability.
7.4
2014-04-07 CVE-2014-0160 Out-of-bounds Read vulnerability in multiple products
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.
7.5
2008-05-13 CVE-2008-0166 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) vulnerability in multiple products
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.
network
low complexity
openssl canonical debian CWE-338
7.5
2005-09-16 CVE-2005-2946 Use of a Broken or Risky Cryptographic Algorithm vulnerability in multiple products
The default configuration on OpenSSL before 0.9.8 uses MD5 for creating message digests instead of a more cryptographically strong algorithm, which makes it easier for remote attackers to forge certificates with a valid certificate authority signature.
network
low complexity
openssl canonical CWE-327
7.5
2004-11-23 CVE-2004-0079 NULL Pointer Dereference vulnerability in multiple products
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.
7.5
2003-11-17 CVE-2003-0545 Double Free vulnerability in Openssl 0.9.6/0.9.7
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.
network
low complexity
openssl CWE-415
critical
9.8