-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3128-1 security@xxxxxxxxxx http://www.debian.org/security/ Salvatore Bonaccorso January 15, 2015 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : linux CVE ID : CVE-2013-6885 CVE-2014-8133 CVE-2014-9419 CVE-2014-9529 CVE-2014-9584 Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or information leaks. CVE-2013-6885 It was discovered that under specific circumstances, a combination of write operations to write-combined memory and locked CPU instructions may cause a core hang on AMD 16h 00h through 0Fh processors. A local user can use this flaw to mount a denial of service (system hang) via a crafted application. For more information please refer to the AMD CPU erratum 793 in http://support.amd.com/TechDocs/51810_16h_00h-0Fh_Rev_Guide.pdf CVE-2014-8133 It was found that the espfix funcionality can be bypassed by installing a 16-bit RW data segment into GDT instead of LDT (which espfix checks for) and using it for stack. A local unprivileged user could potentially use this flaw to leak kernel stack addresses and thus allowing to bypass the ASLR protection mechanism. CVE-2014-9419 It was found that on Linux kernels compiled with the 32 bit interfaces (CONFIG_X86_32) a malicious user program can do a partial ASLR bypass through TLS base addresses leak when attacking other programs. CVE-2014-9529 It was discovered that the Linux kernel is affected by a race condition flaw when doing key garbage collection, allowing local users to cause a denial of service (memory corruption or panic). CVE-2014-9584 It was found that the Linux kernel does not validate a length value in the Extensions Reference (ER) System Use Field, which allows local users to obtain sensitive information from kernel memory via a crafted iso9660 image. For the stable distribution (wheezy), these problems have been fixed in version 3.2.65-1+deb7u1. Additionally this update fixes a suspend/resume regression introduced with 3.2.65. For the upcoming stable distribution (jessie) and the unstable distribution (sid), these problems will be fixed soon. We recommend that you upgrade your linux 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@xxxxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJUt195AAoJEAVMuPMTQ89EV8EQAJhYgNhF7D+LFTVn1G4pqfXH u5eC2LBdDCoFhyaZh33RQH2kAmAnQkoILaP0RrCPBzPJOMnngueIWKuFMJ7itMXG MfqbnyGbVkiqn3GSUWn5XbuH3PnI8r7Q45IydWX6Hn29bbGfjjDK/rqn1KPBg8Iz TYkEZAzdlV4kk4dKh3f8I7VjLxi1J2bPN+yt2tMQotLLDWYaaTND8m6MMPYiY96t pi3PqkcEsXN8dTGRt0EaiMoW+JVv+R9BxlMbP8G8rIhkm0ROzKq2de+0RaFSE5Rb 1WNahpSzlBhX+x6zPG5jA74Owx7PNH+LcDA3ifSnIb03E6dpkvRHlw6gfS8BcX3u ZuRDCQg6gId3KEm1Zl7KwcZJyPVdxlJ+aq73Xu7QOwOr8Tv/cpNMN7mx+XsfIohD WPUa5urCV2GMOz//ODRMgDXl3lv/Yum5/3qDPS/yOmFNqXKPnit6fd8jDHh/TyPZ qDQOtXmWzWvAdL0fL4nv8P0z1DLcnAcXMhAbz6HLdQntHoZA7GV3S9sl1C/gpd/Q DjDyjoGBoAcrrJ5mOPPCxHLBXE25xjBQsG+U147XBqwacJj9WQCi/D136gKfQYqH IANXs8WfctJuAh0EYmFKA1E9mo6ilGed2USF9YmyuoiLL3wxb+sUr684lPj/eL6l ApDdArcvGjn8Er735ZS9 =aeBp -----END PGP SIGNATURE-----
