Debian Security Advisory

DSA-3413-1 openssl -- security update

Date Reported:
04 Dec 2015
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2015-3194, CVE-2015-3195, CVE-2015-3196.
More information:

Multiple vulnerabilities have been discovered in OpenSSL, a Secure Sockets Layer toolkit. The Common Vulnerabilities and Exposures project identifies the following issues:

  • CVE-2015-3194

    Loic Jonas Etienne of Qnective AG discovered that the signature verification routines will crash with a NULL pointer dereference if presented with an ASN.1 signature using the RSA PSS algorithm and absent mask generation function parameter. A remote attacker can exploit this flaw to crash any certificate verification operation and mount a denial of service attack.

  • CVE-2015-3195

    Adam Langley of Google/BoringSSL discovered that OpenSSL will leak memory when presented with a malformed X509_ATTRIBUTE structure.

  • CVE-2015-3196

    A race condition flaw in the handling of PSK identify hints was discovered, potentially leading to a double free of the identify hint data.

For the oldstable distribution (wheezy), these problems have been fixed in version 1.0.1e-2+deb7u18.

For the stable distribution (jessie), these problems have been fixed in version 1.0.1k-3+deb8u2.

For the unstable distribution (sid), these problems have been fixed in version 1.0.2e-1 or earlier.

We recommend that you upgrade your openssl packages.