Several vulnerabilities were discovered in OpenSSL:
- CVE-2016-2177
Guido Vranken discovered that OpenSSL uses undefined pointer
arithmetic. Additional information can be found at
<https://www.openssl.org/blog/blog/2016/06/27/undefined-pointer-arithmetic/>
- CVE-2016-2178
Cesar Pereida, Billy Brumley and Yuval Yarom discovered a timing
leak in the DSA code.
- CVE-2016-2179 / CVE-2016-2181
Quan Luo and the OCAP audit team discovered denial of service
vulnerabilities in DTLS.
- CVE-2016-2180 / CVE-2016-2182 / CVE-2016-6303
Shi Lei discovered an out-of-bounds memory read in
TS_OBJ_print_bio() and an out-of-bounds write in BN_bn2dec()
and MDC2_Update().
- CVE-2016-2183
DES-based cipher suites are demoted from the HIGH group to MEDIUM
as a mitigation for the SWEET32 attack.
- CVE-2016-6302
Shi Lei discovered that the use of SHA512 in TLS session tickets
is susceptible to denial of service.
- CVE-2016-6304
Shi Lei discovered that excessively large OCSP status request may
result in denial of service via memory exhaustion.
- CVE-2016-6306
Shi Lei discovered that missing message length validation when parsing
certificates may potentially result in denial of service.
For the stable distribution (jessie), these problems have been fixed in
version 1.0.1t-1+deb8u4.
For the unstable distribution (sid), these problems will be fixed soon.
We recommend that you upgrade your openssl packages.