-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-4196-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso May 08, 2018 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : linux CVE ID : CVE-2018-1087 CVE-2018-8897 Debian Bug : 897427 897599 898067 898100 Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation or denial of service. CVE-2018-1087 Andy Lutomirski discovered that the KVM implementation did not properly handle #DB exceptions while deferred by MOV SS/POP SS, allowing an unprivileged KVM guest user to crash the guest or potentially escalate their privileges. CVE-2018-8897 Nick Peterson of Everdox Tech LLC discovered that #DB exceptions that are deferred by MOV SS or POP SS are not properly handled, allowing an unprivileged user to crash the kernel and cause a denial of service. For the oldstable distribution (jessie), these problems have been fixed in version 3.16.56-1+deb8u1. This update includes various fixes for regressions from 3.16.56-1 as released in DSA-4187-1 (Cf. #897427, #898067 and #898100). For the stable distribution (stretch), these problems have been fixed in version 4.9.88-1+deb9u1. The fix for CVE-2018-1108 applied in DSA-4188-1 is temporarily reverted due to various regression, cf. #897599. We recommend that you upgrade your linux packages. For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux 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----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAlryHFFfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0SMQA/9HoJDt2OdyqqtfNUuWfP3sgGV1QVjIJnF39unKRdIaGw9m0RHQUu1G3rC cgxcYcpQ0h10Yy5KVh4APqt55K7aVWVQT6xB0yx2VddMEwwl3rp2r/eL7EtoOkQT zZW5JponzlEAjC9uGk7CouA7z/qFtd5awufFhAjMF5eL4ZQ6pG8wWEbae6DbU9nz c7F+okC4hL6yPuWVEWzTRUFK1W0hs2N+VQgHV/afZaMAAooeZJDJeq1Hn/PVYvwJ IHSOs01+kn0OUFHkVRA7kVdFAYUJlfhsDcXd9nB/lkxhc/HNI1g/dK76mRxjsiMo pJlkPbEmZlOtmNG7vogxEp72ab24j2CITIHiID7ftZH5R/I2CSxp2dIzRVKdmP6P tsfh/KcpUMNwwiPiGed1DMCjtsHOodBOkLtVsoHHJVMZg2xqfCrlqNRUn9o+0DcR gO7HBsWG9K1qvSBWuRtQLT8QP00P3dSdhHmfWyfN8eJxTot+WJuMF/o+jbF6GGrZ lPmzWqg4oL7jvQO8nlEkatjIFejEg0jmt+rCXyEbK8Uc9xjJk35GKIZne5X09BFe 36zY7HbMlPvLP/VHSb6fcPBpQo/HuG0/htAB1HpWS1fPrth1J76g2EmwFSG5Lo51 IRxTXP4UZuOL1sJHQ80220tThKs2dk1Yy77dKk8qQiQ2nC2JgNs= =CskH -----END PGP SIGNATURE-----