- OpenSSL Security Advisory [3rd May 2016]
- update to 1.0.2h (boo#977584, boo#977663)
* Prevent padding oracle in AES-NI CBC MAC check
A MITM attacker can use a padding oracle attack to decrypt traffic
when the connection uses an AES CBC cipher and the server support
AES-NI.
(CVE-2016-2107, boo#977616)
* Fix EVP_EncodeUpdate overflow
An overflow can occur in the EVP_EncodeUpdate() function which is used for
Base64 encoding of binary data. If an attacker is able to supply very large
amounts of input data then a length check can overflow resulting in a heap
corruption.
(CVE-2016-2105, boo#977614)
* Fix EVP_EncryptUpdate overflow
An overflow can occur in the EVP_EncryptUpdate() function. If an attacker
is able to supply very large amounts of input data after a previous call to
EVP_EncryptUpdate() with a partial block then a length check can overflow
resulting in a heap corruption.
(CVE-2016-2106, boo#977615)
* Prevent ASN.1 BIO excessive memory allocation
When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio()
a short invalid encoding can casuse allocation of large amounts of memory
potentially consuming excessive resources or exhausting memory.
(CVE-2016-2109, boo#976942)
* EBCDIC overread
ASN1 Strings that are over 1024 bytes can cause an overread in applications
using the X509_NAME_oneline() function on EBCDIC systems. This could result
in arbitrary stack data being returned in the buffer.
(CVE-2016-2176, boo#978224)
* Modify behavior of ALPN to invoke callback after SNI/servername (forwarded request 393446 from vitezslav_cizek)
OBS-URL: https://build.opensuse.org/request/show/393456
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/openssl?expand=0&rev=132
- update to 1.0.2g (bsc#968044)
* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
Builds that are not configured with "enable-weak-ssl-ciphers" will not
provide any "EXPORT" or "LOW" strength ciphers.
* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2
is by default disabled at build-time. Builds that are not configured with
"enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used,
users who want to negotiate SSLv2 via the version-flexible SSLv23_method()
will need to explicitly call either of:
SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2);
or
SSL_clear_options(ssl, SSL_OP_NO_SSLv2);
(CVE-2016-0800)
* Fix a double-free in DSA code
(CVE-2016-0705)
* Disable SRP fake user seed to address a server memory leak.
Add a new method SRP_VBASE_get1_by_user that handles the seed properly.
(CVE-2016-0798)
* Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
(CVE-2016-0797)
*) Side channel attack on modular exponentiation
http://cachebleed.info.
(CVE-2016-0702)
*) Change the req app to generate a 2048-bit RSA/DSA key by default,
if no keysize is specified with default_bits. This fixes an
omission in an earlier change that changed all RSA/DSA key generation
apps to use 2048 bits by default. (forwarded request 363599 from vitezslav_cizek)
OBS-URL: https://build.opensuse.org/request/show/363602
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/openssl?expand=0&rev=130
