Upstream information

CVE-2017-1000253 at MITRE

Description

Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the "gap" between the stack and the binary.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 7.2 7.2
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local Local
Access Complexity Low Low
Authentication None None
Confidentiality Impact Complete Complete
Integrity Impact Complete Complete
Availability Impact Complete Complete
CVSS v3 Scores
  SUSE
Base Score 8.4
Vector AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Local
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High

Note from the SUSE Security Team

SUSE Linux Enterprise Server 12 SP2 and SP3 are not affected, as the fix was added in Linux Kernel 4.1. SUSE Linux Enterprise Server 12 GA and SP1 have received this fix via the 3.12.43 stable kernel update.

SUSE Bugzilla entries: 1059525 [RESOLVED / FIXED], 1061680 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Point of Sale 11 SP3
  • kernel-default >= 3.0.101-0.47.106.8.1
  • kernel-default-base >= 3.0.101-0.47.106.8.1
  • kernel-default-devel >= 3.0.101-0.47.106.8.1
  • kernel-ec2 >= 3.0.101-0.47.106.8.1
  • kernel-ec2-base >= 3.0.101-0.47.106.8.1
  • kernel-ec2-devel >= 3.0.101-0.47.106.8.1
  • kernel-pae >= 3.0.101-0.47.106.8.1
  • kernel-pae-base >= 3.0.101-0.47.106.8.1
  • kernel-pae-devel >= 3.0.101-0.47.106.8.1
  • kernel-source >= 3.0.101-0.47.106.8.1
  • kernel-syms >= 3.0.101-0.47.106.8.1
  • kernel-trace >= 3.0.101-0.47.106.8.1
  • kernel-trace-base >= 3.0.101-0.47.106.8.1
  • kernel-trace-devel >= 3.0.101-0.47.106.8.1
  • kernel-xen >= 3.0.101-0.47.106.8.1
  • kernel-xen-base >= 3.0.101-0.47.106.8.1
  • kernel-xen-devel >= 3.0.101-0.47.106.8.1
Patchnames:
sleposp3-kernel-13314
SUSE Linux Enterprise Server 11 SP3-LTSS
  • kernel-bigsmp >= 3.0.101-0.47.106.8.1
  • kernel-bigsmp-base >= 3.0.101-0.47.106.8.1
  • kernel-bigsmp-devel >= 3.0.101-0.47.106.8.1
  • kernel-default >= 3.0.101-0.47.106.8.1
  • kernel-default-base >= 3.0.101-0.47.106.8.1
  • kernel-default-devel >= 3.0.101-0.47.106.8.1
  • kernel-default-man >= 3.0.101-0.47.106.8.1
  • kernel-ec2 >= 3.0.101-0.47.106.8.1
  • kernel-ec2-base >= 3.0.101-0.47.106.8.1
  • kernel-ec2-devel >= 3.0.101-0.47.106.8.1
  • kernel-pae >= 3.0.101-0.47.106.8.1
  • kernel-pae-base >= 3.0.101-0.47.106.8.1
  • kernel-pae-devel >= 3.0.101-0.47.106.8.1
  • kernel-source >= 3.0.101-0.47.106.8.1
  • kernel-syms >= 3.0.101-0.47.106.8.1
  • kernel-trace >= 3.0.101-0.47.106.8.1
  • kernel-trace-base >= 3.0.101-0.47.106.8.1
  • kernel-trace-devel >= 3.0.101-0.47.106.8.1
  • kernel-xen >= 3.0.101-0.47.106.8.1
  • kernel-xen-base >= 3.0.101-0.47.106.8.1
  • kernel-xen-devel >= 3.0.101-0.47.106.8.1
Patchnames:
slessp3-kernel-13314
SUSE Linux Enterprise Server 11 SP4
  • kernel-bigmem >= 3.0.101-108.13.1
  • kernel-bigmem-base >= 3.0.101-108.13.1
  • kernel-bigmem-devel >= 3.0.101-108.13.1
  • kernel-default >= 3.0.101-108.13.1
  • kernel-default-base >= 3.0.101-108.13.1
  • kernel-default-devel >= 3.0.101-108.13.1
  • kernel-default-man >= 3.0.101-108.13.1
  • kernel-ec2 >= 3.0.101-108.13.1
  • kernel-ec2-base >= 3.0.101-108.13.1
  • kernel-ec2-devel >= 3.0.101-108.13.1
  • kernel-pae >= 3.0.101-108.13.1
  • kernel-pae-base >= 3.0.101-108.13.1
  • kernel-pae-devel >= 3.0.101-108.13.1
  • kernel-ppc64 >= 3.0.101-108.13.1
  • kernel-ppc64-base >= 3.0.101-108.13.1
  • kernel-ppc64-devel >= 3.0.101-108.13.1
  • kernel-source >= 3.0.101-108.13.1
  • kernel-syms >= 3.0.101-108.13.1
  • kernel-trace >= 3.0.101-108.13.1
  • kernel-trace-base >= 3.0.101-108.13.1
  • kernel-trace-devel >= 3.0.101-108.13.1
  • kernel-xen >= 3.0.101-108.13.1
  • kernel-xen-base >= 3.0.101-108.13.1
  • kernel-xen-devel >= 3.0.101-108.13.1
Patchnames:
slessp4-kernel-13312
SUSE Linux Enterprise Software Development Kit 11 SP4
  • kernel-docs >= 3.0.101-108.13.2
Patchnames:
sdksp4-kernel-13312

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise Real Time Extension 11 SP4
  • kernel-rt >= 3.0.101.rt130-69.11.1
  • kernel-rt-base >= 3.0.101.rt130-69.11.1
  • kernel-rt-devel >= 3.0.101.rt130-69.11.1
  • kernel-rt_trace >= 3.0.101.rt130-69.11.1
  • kernel-rt_trace-base >= 3.0.101.rt130-69.11.1
  • kernel-rt_trace-devel >= 3.0.101.rt130-69.11.1
  • kernel-source-rt >= 3.0.101.rt130-69.11.1
  • kernel-syms-rt >= 3.0.101.rt130-69.11.1


Status of this issue by product and package

Product(s) Source package State
SUSE Linux Enterprise Desktop 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-source Released
SUSE Linux Enterprise Server 11 SP4 kernel-source Released
SUSE Linux Enterprise Server 12 GA kernel-source Already fixed
SUSE Linux Enterprise Server 12 SP1 kernel-source Already fixed
SUSE Linux Enterprise Server 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3 kernel-source Not affected