데비안(Debian) 리눅스 커널 업데이트 - 4.9.110-1, 3.16.57-2

데비안 프로젝트(The Debian Project)에서 개발하는 데비안(Debian) 9 Stretch (Stable)와 8 Jessie (OldStable) 리눅스 커널의 새로운 기능 추가나 버그 수정 또는 보안 취약점 문제를 해결한 커널 4.9.110-1 버전, 3.16.57-2 버전이 업데이트를 통해 배포되었습니다.

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이번 리눅스 커널 업데이트에는 다음과 같은 다수의 보안 취약점에 대한 보안 패치가 각각 포함되어 있습니다.

linux (4.9.110-1) stretch

  * New upstream stable update: 4.9.108

    - usbip: vhci_sysfs: fix potential Spectre v1 (CVE-2017-5753)

    - [x86] kvm: use correct privilege level for sgdt/sidt/fxsave/fxrstor access (CVE-2018-10853)

    - vhost: fix info leak due to uninitialized memory (CVE-2018-1118)

  * ext4: add corruption check in ext4_xattr_set_entry() (CVE-2018-10879)

  * ext4: always verify the magic number in xattr blocks (CVE-2018-10879)

  * ext4: always check block group bounds in ext4_init_block_bitmap() (CVE-2018-10878)

  * ext4: make sure bitmaps and the inode table don't overlap with bg descriptors (CVE-2018-10878)

  * ext4: only look at the bg_flags field if it is valid (CVE-2018-10876)

  * ext4: verify the depth of extent tree in ext4_find_extent() (CVE-2018-10877)

  * ext4: clear i_data in ext4_inode_info when removing inline data (CVE-2018-10881)

  * ext4: never move the system.data xattr out of the inode body (CVE-2018-10880)

  * jbd2: don't mark block as modified if the handle is out of credits (CVE-2018-10883)

  * ext4: avoid running out of journal credits when appending to an inline file (CVE-2018-10883)

  * ext4: add more inode number paranoia checks (CVE-2018-10882)

  * sr: pass down correctly sized SCSI sense buffer (CVE-2018-11506)

  * jfs: Fix inconsistency between memory allocation and ea_buf->max_size (CVE-2018-12233)

  * New upstream stable update: 4.9.89

    - CIFS: Enable encryption during session setup phase (CVE-2018-1066)

    - drm: udl: Properly check framebuffer mmap offsets (CVE-2018-8781)

    - staging: ncpfs: memory corruption in ncp_read_kernel() (CVE-2018-8822)

    - kvm/x86: fix icebp instruction handling (CVE-2018-1087)

    - [x86] x86/entry/64: Don't use IST entry for #BP stack (CVE-2018-8897)

    - dccp: check sk for closed state in dccp_sendmsg() (CVE-2018-1130)

    - perf/hwbp: Simplify the perf-hwbp code, fix documentation (CVE-2018-1000199)

    - media: usbtv: prevent double free in error case (CVE-2017-17975)

    - net: hns: Fix ethtool private flags (CVE-2017-18222)

    - scsi: libsas: fix memory leak in sas_smp_get_phy_events() (CVE-2018-7757)

    - ext4: fail ext4_iget for root directory if unallocated (CVE-2018-1092)

    - random: fix crng_ready() test (CVE-2018-1108)

    - cdrom: information leak in cdrom_ioctl_media_changed() (CVE-2018-10940)

    - ext4: add validity checks for bitmap block numbers (CVE-2018-1093)

    - perf/core: Fix the perf_cpu_time_max_percent check (CVE-2018-18255)

    - f2fs: fix a dead loop in f2fs_fiemap() (CVE-2018-18257)

    - proc: do not access cmdline nor environ from file-backed areas (CVE-2018-1120)

    - kernel/exit.c: avoid undefined behaviour when calling wait4() (CVE-2018-10087)

    - usbip: usbip_host: fix NULL-ptr deref and use-after-free errors (CVE-2018-5814)

    - [x86] x86/process: Allow runtime control of Speculative Store Bypass (CVE-2018-3639)

    - scsi: libsas: defer ata device eh commands to libata (CVE-2018-10021)

    - scsi: sg: allocate with __GFP_ZERO in sg_build_indirect() (CVE-2018-1000204)

    - kernel/signal.c: avoid undefined behaviour in kill_something_info (CVE-2018-10124)

    - mac80211_hwsim: fix possible memory leak in hwsim_new_radio_nl() (CVE-2018-8087)

    - fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper(). (CVE-2018-6412)

linux (3.16.57-2) jessie-security

  * mmc/host: Ignore ABI changes (fixes FTBFS on armhf)

  * New upstream stable update: 3.16.57

    - cifs: empty TargetInfo leads to crash on recovery (CVE-2018-1066)

    - ext4: add validity checks for bitmap block numbers (CVE-2018-1093)

    - dccp: check sk for closed state in dccp_sendmsg() (CVE-2018-1130)

    - cdrom: information leak in cdrom_ioctl_media_changed() (CVE-2018-10940)

    - [x86] Update mitigation for Meltdown (CVE-2017-5754):

    - [x86] Add support for microcode-based mitigation of Spectre v2 (CVE-2017-5715):

    - posix-timers: Protect posix clock array access against speculation (CVE-2017-5753)

  * [x86] fpu: Default eagerfpu if FPU and FXSR are enabled (CVE-2018-3665)

  * usbip: usbip_host: fix NULL-ptr deref and use-after-free errors (CVE-2018-5814)

  * futex: Remove requirement for lock_page() in get_futex_key() (CVE-2018-9422)

  * [x86[ kvm: use correct privilege level for sgdt/sidt/fxsave/fxrstor access (CVE-2018-10853)

  * sr: pass down correctly sized SCSI sense buffer (CVE-2018-11506)

  * jfs: Fix inconsistency between memory allocation and ea_buf->max_size (CVE-2018-12233)

  * scsi: sg: allocate with __GFP_ZERO in sg_build_indirect() (CVE-2018-1000204)

자세한 업데이트 내역은 아래 링크의 Changelog 정보를 참고하기 바랍니다.

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[영향을 받는 리눅스 커널 및 업데이트 버전]

□ 데비안 9 Stretch (Stable)

※ 커널 4.9 → 커널 4.9.110-1 버전으로 업데이트

https://tracker.debian.org/media/packages/l/linux/changelog-4.9.110-1

※ 2020년 Full 지원 종료 예정 및 2022년 6월 장기 지원 (LTS) 종료 예정

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□ 데비안 8 Jessie (OldStable) / 리눅스민트데비안에디션(LMDE) 2 Betsy

※ 커널 3.16 → 커널 3.16.57-2 버전으로 업데이트

https://tracker.debian.org/media/packages/l/linux/changelog-3.16.57-2

※ 2018년 6월 Full 지원 종료 예정 및 2020년 4월 장기 지원 (LTS) 종료 예정

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□ 데비안 7 Wheezy

※ 2018년 5월 31일 지원 종료

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배포판의 종류와 커널 버전을 알기 위해서는 터미널에서 다음의 명령어를 입력하기 바랍니다.
$ lsb_release -a && uname -a

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그러므로 데비안 및 LMDE 사용자는 터미널에서 다음의 명령어를 입력하여 최신 버전으로 업데이트하기 바랍니다.
$ sudo apt-get update && sudo apt-get dist-upgrade -y && sudo apt-get autoremove --purge && sudo apt-get autoclean

아울러 업데이트를 적용하기 위해서는 마지막에 반드시 재부팅을 하기 바랍니다.

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리눅스민트데비안에디션(LMDE) 2 Betsy는 데비안 8 Jessie (OldStable)을 변형한 배포판입니다.

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