CVE-2017-1000253

Highest-risk unexploited with PoCs

Exploit code exists, no confirmed in-the-wild activity, ranked by EPSS

Actively Exploited

Confirmed exploited in the wild, sorted by most recently updated

CVSS 7.8EPSS 11%

Published 2017-10-04Updated 2026-04-22

Exploited in the wildPoC

Vulnerability details

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNAmitre

EPSS score history

Sources

3 links

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CISA Known Exploited InTheWild CVE Organization

Profile

CVSS

7.8

EPSS

11%

Published

2017-10-04

Updated

2026-04-22

CNA

mitre

Vendors

n/a

1 product

CPEs

cpe:2.3:o:centos:centos:6.0:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.1:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.2:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.3:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.4:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.5:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.6:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.7:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.8:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:6.9:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:7.1406:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:7.1503:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:7.1511:*:*:*:*:*:*:*

cpe:2.3:o:centos:centos:7.1611:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.1:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.2:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.3:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.4:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.5:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.6:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.7:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.8:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:6.9:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:7.1:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:7.2:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:7.3:*:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vulnerability dashboard

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