Vulnerability Monitor

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CVE-2017-1000253

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.

Published

2017-10-05T01:29:04.790

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-119
  • Type: Secondary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System centos centos 6.0 Yes
Operating System centos centos 6.1 Yes
Operating System centos centos 6.2 Yes
Operating System centos centos 6.3 Yes
Operating System centos centos 6.4 Yes
Operating System centos centos 6.5 Yes
Operating System centos centos 6.6 Yes
Operating System centos centos 6.7 Yes
Operating System centos centos 6.8 Yes
Operating System centos centos 6.9 Yes
Operating System centos centos 7.1406 Yes
Operating System centos centos 7.1503 Yes
Operating System centos centos 7.1511 Yes
Operating System centos centos 7.1611 Yes
Operating System redhat enterprise_linux 6.0 Yes
Operating System redhat enterprise_linux 6.1 Yes
Operating System redhat enterprise_linux 6.2 Yes
Operating System redhat enterprise_linux 6.3 Yes
Operating System redhat enterprise_linux 6.4 Yes
Operating System redhat enterprise_linux 6.5 Yes
Operating System redhat enterprise_linux 6.6 Yes
Operating System redhat enterprise_linux 6.7 Yes
Operating System redhat enterprise_linux 6.8 Yes
Operating System redhat enterprise_linux 6.9 Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System redhat enterprise_linux 7.1 Yes
Operating System redhat enterprise_linux 7.2 Yes
Operating System redhat enterprise_linux 7.3 Yes
Operating System linux linux_kernel < 3.2.70 Yes
Operating System linux linux_kernel < 3.4.109 Yes
Operating System linux linux_kernel < 3.10.77 Yes
Operating System linux linux_kernel < 3.12.43 Yes
Operating System linux linux_kernel < 3.14.41 Yes
Operating System linux linux_kernel < 3.16.35 Yes
Operating System linux linux_kernel < 3.18.14 Yes
Operating System linux linux_kernel < 3.19.7 Yes
Operating System linux linux_kernel < 4.0.2 Yes
References