kernel-packages team mailing list archive

[Mathew Hodson <mathew.hodson@xxxxxxxxx>]

** Changed in: linux (Ubuntu Vivid)
       Status: Fix Released => Invalid

** Changed in: linux (Ubuntu Wily)
       Status: Fix Released => Invalid

** Changed in: linux-lts-vivid (Ubuntu Trusty)
       Status: Fix Committed => Invalid

** Changed in: linux-lts-saucy (Ubuntu Precise)
       Status: Invalid => Won't Fix

** Changed in: linux-lts-raring (Ubuntu Precise)
       Status: Invalid => Won't Fix

** No longer affects: linux-lts-backport-maverick (Ubuntu)

** No longer affects: linux-lts-backport-maverick (Ubuntu Lucid)

** No longer affects: linux-lts-backport-maverick (Ubuntu Precise)

** No longer affects: linux-lts-backport-maverick (Ubuntu Trusty)

** No longer affects: linux-lts-backport-maverick (Ubuntu Utopic)

** No longer affects: linux-lts-backport-maverick (Ubuntu Vivid)

** No longer affects: linux-lts-backport-maverick (Ubuntu Wily)

** No longer affects: linux-lts-backport-natty (Ubuntu Wily)

** No longer affects: linux-lts-backport-natty (Ubuntu Vivid)

** No longer affects: linux-lts-backport-natty (Ubuntu Utopic)

** No longer affects: linux-lts-backport-natty (Ubuntu Trusty)

** No longer affects: linux-lts-backport-natty (Ubuntu Precise)

** No longer affects: linux-lts-backport-natty (Ubuntu Lucid)

** No longer affects: linux-lts-backport-natty (Ubuntu)

** Description changed:

- [execution in the early microcode loader x86/intel] Guard against stack
- overflow in the loader mc_saved_tmp is a static array allocated on the
- stack, we need to make sure mc_saved_count stays within its bounds,
- otherwise we're overflowing the stack in _save_mc(). A specially crafted
- microcode header could lead to a kernel crash or potentially kernel
- execution.
+ Stack-based buffer overflow in the get_matching_model_microcode function in
+ arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0
+ allows context-dependent attackers to gain privileges by constructing a
+ crafted microcode header and leveraging root privileges for write access to
+ the initrd.
  
  Break-Fix: ec400ddeff200b068ddc6c70f7321f49ecf32ed5
  f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-armadaxp in Ubuntu.
https://bugs.launchpad.net/bugs/1438504

Title:
  CVE-2015-2666

Status in linux package in Ubuntu:
  Invalid
Status in linux-armadaxp package in Ubuntu:
  Invalid
Status in linux-ec2 package in Ubuntu:
  Invalid
Status in linux-flo package in Ubuntu:
  Invalid
Status in linux-fsl-imx51 package in Ubuntu:
  Invalid
Status in linux-goldfish package in Ubuntu:
  Invalid
Status in linux-lts-quantal package in Ubuntu:
  Invalid
Status in linux-lts-raring package in Ubuntu:
  Invalid
Status in linux-lts-saucy package in Ubuntu:
  Invalid
Status in linux-lts-trusty package in Ubuntu:
  Invalid
Status in linux-lts-utopic package in Ubuntu:
  Invalid
Status in linux-lts-vivid package in Ubuntu:
  Invalid
Status in linux-mako package in Ubuntu:
  Invalid
Status in linux-manta package in Ubuntu:
  Invalid
Status in linux-mvl-dove package in Ubuntu:
  Invalid
Status in linux-ti-omap4 package in Ubuntu:
  Invalid
Status in linux source package in Precise:
  Invalid
Status in linux-armadaxp source package in Precise:
  Invalid
Status in linux-ec2 source package in Precise:
  Invalid
Status in linux-flo source package in Precise:
  Invalid
Status in linux-fsl-imx51 source package in Precise:
  Invalid
Status in linux-goldfish source package in Precise:
  Invalid
Status in linux-lts-quantal source package in Precise:
  Invalid
Status in linux-lts-raring source package in Precise:
  Won't Fix
Status in linux-lts-saucy source package in Precise:
  Won't Fix
Status in linux-lts-trusty source package in Precise:
  Fix Released
Status in linux-lts-utopic source package in Precise:
  Invalid
Status in linux-lts-vivid source package in Precise:
  Invalid
Status in linux-mako source package in Precise:
  Invalid
Status in linux-manta source package in Precise:
  Invalid
Status in linux-mvl-dove source package in Precise:
  Invalid
Status in linux-ti-omap4 source package in Precise:
  Invalid
Status in linux source package in Trusty:
  Fix Released
Status in linux-armadaxp source package in Trusty:
  Invalid
Status in linux-ec2 source package in Trusty:
  Invalid
Status in linux-flo source package in Trusty:
  Invalid
Status in linux-fsl-imx51 source package in Trusty:
  Invalid
Status in linux-goldfish source package in Trusty:
  Invalid
Status in linux-lts-quantal source package in Trusty:
  Invalid
Status in linux-lts-raring source package in Trusty:
  Invalid
Status in linux-lts-saucy source package in Trusty:
  Invalid
Status in linux-lts-trusty source package in Trusty:
  Invalid
Status in linux-lts-utopic source package in Trusty:
  Fix Released
Status in linux-lts-vivid source package in Trusty:
  Invalid
Status in linux-mako source package in Trusty:
  Invalid
Status in linux-manta source package in Trusty:
  Invalid
Status in linux-mvl-dove source package in Trusty:
  Invalid
Status in linux-ti-omap4 source package in Trusty:
  Invalid
Status in linux source package in Utopic:
  Fix Released
Status in linux-armadaxp source package in Utopic:
  Invalid
Status in linux-ec2 source package in Utopic:
  Invalid
Status in linux-flo source package in Utopic:
  Invalid
Status in linux-fsl-imx51 source package in Utopic:
  Invalid
Status in linux-goldfish source package in Utopic:
  Invalid
Status in linux-lts-quantal source package in Utopic:
  Invalid
Status in linux-lts-raring source package in Utopic:
  Invalid
Status in linux-lts-saucy source package in Utopic:
  Invalid
Status in linux-lts-trusty source package in Utopic:
  Invalid
Status in linux-lts-utopic source package in Utopic:
  Invalid
Status in linux-lts-vivid source package in Utopic:
  Invalid
Status in linux-mako source package in Utopic:
  Invalid
Status in linux-manta source package in Utopic:
  Invalid
Status in linux-mvl-dove source package in Utopic:
  Invalid
Status in linux-ti-omap4 source package in Utopic:
  Invalid
Status in linux source package in Vivid:
  Invalid
Status in linux-armadaxp source package in Vivid:
  Invalid
Status in linux-ec2 source package in Vivid:
  Invalid
Status in linux-flo source package in Vivid:
  Invalid
Status in linux-fsl-imx51 source package in Vivid:
  Invalid
Status in linux-goldfish source package in Vivid:
  Invalid
Status in linux-lts-quantal source package in Vivid:
  Invalid
Status in linux-lts-raring source package in Vivid:
  Invalid
Status in linux-lts-saucy source package in Vivid:
  Invalid
Status in linux-lts-trusty source package in Vivid:
  Invalid
Status in linux-lts-utopic source package in Vivid:
  Invalid
Status in linux-lts-vivid source package in Vivid:
  Invalid
Status in linux-mako source package in Vivid:
  Invalid
Status in linux-manta source package in Vivid:
  Invalid
Status in linux-mvl-dove source package in Vivid:
  Invalid
Status in linux-ti-omap4 source package in Vivid:
  Invalid
Status in linux source package in Wily:
  Invalid
Status in linux-armadaxp source package in Wily:
  Invalid
Status in linux-ec2 source package in Wily:
  Invalid
Status in linux-flo source package in Wily:
  Invalid
Status in linux-fsl-imx51 source package in Wily:
  Invalid
Status in linux-goldfish source package in Wily:
  Invalid
Status in linux-lts-quantal source package in Wily:
  Invalid
Status in linux-lts-raring source package in Wily:
  Invalid
Status in linux-lts-saucy source package in Wily:
  Invalid
Status in linux-lts-trusty source package in Wily:
  Invalid
Status in linux-lts-utopic source package in Wily:
  Invalid
Status in linux-lts-vivid source package in Wily:
  Invalid
Status in linux-mako source package in Wily:
  Invalid
Status in linux-manta source package in Wily:
  Invalid
Status in linux-mvl-dove source package in Wily:
  Invalid
Status in linux-ti-omap4 source package in Wily:
  Invalid

Bug description:
  Stack-based buffer overflow in the get_matching_model_microcode function in
  arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0
  allows context-dependent attackers to gain privileges by constructing a
  crafted microcode header and leveraging root privileges for write access to
  the initrd.

  Break-Fix: ec400ddeff200b068ddc6c70f7321f49ecf32ed5
  f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4

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