-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Package : nss Version : 2:3.14.5-1+deb7u7 CVE ID : CVE-2015-4000 Debian Bug : N/A
A vulnerability has been found in nss. CVE-2015-4000 With 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. The solution in nss was to not accept bit lengths less than 1024. This may potentially be a backwards incompatibility issue but such low bit lengths should not be in use so it was deemed acceptable. For Debian 7 "Wheezy", these problems have been fixed in version 2:3.14.5-1+deb7u7. We recommend that you upgrade your nss packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - -- --------------------- Ola Lundqvist --------------------------- / [email protected] Folkebogatan 26 \ | [email protected] 654 68 KARLSTAD | | http://inguza.com/ +46 (0)70-332 1551 | \ gpg/f.p.: 22F2 32C6 B1E0 F4BF 2B26 0A6A 5E90 DCFA 9426 876F / --------------------------------------------------------------- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBCAAGBQJXVps6AAoJEF6Q3PqUJodvwUwP/ivLYufklsqFh1/W34MHrcm4 N/hiwwCSZTIxkjkWTfsdgLNQ496nHqTvFDMAmGsi5jD0d1pwAX35vfdc0mxIOFXG STkFBH1qD2Y/+ObNXMPxu8W0ta3z18Ke9ErqJofzlq+krzXb3NxHfFAejvbMexlm Dt/oLKdGdaoPZis1IB5ye3I0iJvC7562uD6F437D32nIrWim4bFF3X//a+7l3Xms DutWbZ8RG3Oe1CXaQYnLUiKnuE45HQ41rzIt9hrt2gcS766eW7IW99Z2j+a/YkDQ eLscShCSmCsurS1b47yKUjfoDZQGCCnrA+JQwYxR4g2hvfbV794cf2a49fvnxGNL aK8GbO/PulL0EjVOtwhCJv2dF1WwL2UvgWx4d511mrK3q1bVAjYje2gwLdO+YY6q TFwuTsZP7zaKvcGx0FBiYJFkgtO5lzvQkmXIwTr106AewjHtOyUdcKyrl5bJczEO HMY5cMl9VWiQcmGFp5s3QfucgL10EjNTKWog0LcHty9vhm87ckS1WrYuhOS6sIb2 6dCL4sv7TLZhm+zMT8QHAccvws+wUzdlSKC2UEeSnxp79IGg5Xf1rc8imGCYgBYe BdkdZnweCEQ1avcl/wbICAK9GJtZlmgnHG26SDGPak4dA5ZuWbITFORcyBPXYzK6 TKAODDDd5NJYK8U7vZv6 =72yt -----END PGP SIGNATURE-----
