-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3287-1 security@debian.org https://www.debian.org/security/ Alessandro Ghedini June 13, 2015 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : openssl CVE ID : CVE-2014-8176 CVE-2015-1788 CVE-2015-1789 CVE-2015-1790 CVE-2015-1791 CVE-2015-1792 CVE-2015-4000 Multiple vulnerabilities were discovered in OpenSSL, a Secure Sockets Layer toolkit. CVE-2014-8176 Praveen Kariyanahalli, Ivan Fratric and Felix Groebert discovered that an invalid memory free could be triggered when buffering DTLS data. This could allow remote attackers to cause a denial of service (crash) or potentially execute arbitrary code. This issue only affected the oldstable distribution (wheezy). CVE-2015-1788 Joseph Barr-Pixton discovered that an infinite loop could be triggered due to incorrect handling of malformed ECParameters structures. This could allow remote attackers to cause a denial of service. CVE-2015-1789 Robert Swiecki and Hanno Böck discovered that the X509_cmp_time function could read a few bytes out of bounds. This could allow remote attackers to cause a denial of service (crash) via crafted certificates and CRLs. CVE-2015-1790 Michal Zalewski discovered that the PKCS#7 parsing code did not properly handle missing content which could lead to a NULL pointer dereference. This could allow remote attackers to cause a denial of service (crash) via crafted ASN.1-encoded PKCS#7 blobs. CVE-2015-1791 Emilia Käsper discovered that a race condition could occur due to incorrect handling of NewSessionTicket in a multi-threaded client, leading to a double free. This could allow remote attackers to cause a denial of service (crash). CVE-2015-1792 Johannes Bauer discovered that the CMS code could enter an infinite loop when verifying a signedData message, if presented with an unknown hash function OID. This could allow remote attackers to cause a denial of service. Additionally OpenSSL will now reject handshakes using DH parameters shorter than 768 bits as a countermeasure against the Logjam attack (CVE-2015-4000). For the oldstable distribution (wheezy), these problems have been fixed in version 1.0.1e-2+deb7u17. For the stable distribution (jessie), these problems have been fixed in version 1.0.1k-3+deb8u1. For the testing distribution (stretch), these problems have been fixed in version 1.0.2b-1. For the unstable distribution (sid), these problems have been fixed in version 1.0.2b-1. We recommend that you upgrade your openssl packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJVfD8XAAoJEK+lG9bN5XPLVMcP/3IJavEP0DvwOjnmmoRMTZ6E gx/OkKjyojIT5+S5nF2NuEnkMXkQkEioOhABedGiREM5441zClA2ahbjXPe+NWsU MTXdVDx0CyWon2aE4vyn9XxD1vyhKffPBozS+WYZlQyB7y1xBD7as1pp40gxn3Ps p9I379gQ/HbKW9GK4E9y/ocXHs9WFXeh9uBEge+N+VQi+t0C8WJZX1LJ4k1Fc5GY /5RpEU6ntJWhQaUxdaVK7Eh7DThnlmoLp5cyxK6daesXrbwS3jyNknk05XphktkG I2IBoZe+Z1Dgm9URqMh6O1amOOzdbc5y9HOwmW457F/ky5DggTlabeOS+Dwo3X6P AzWaRgOizSDyxsdBpDD3QsqZlnWI5dKLy2irvKS6c0N3ju8huwEKRdOYfbFZHA2r x/uW6GFrDhVMcdA5UjvEZoKHmC7aXdaTbLodeVNchx5ARz85OZgfo40StNi09ihC 26peaJNLwls32YwaIoMX9lTJRcKhdOPkvu6ufp8lTCxaYD/B2+T9gCaqUP89KgA2 zo18PGsBHPizKPVg5jRQd7esigsqR+R84FIe13yxytw85oK58awkxkibZl/HldFQ wO7cQlBDm5sKIGLu36A6Qw+ofafk34JPLjSi7xFSxID86S77/z16B/ySB0OvzHvJ AXTWHHGtbZfFFPXAIHeu =7M6H -----END PGP SIGNATURE-----