$ cve CVE-2017-1000253 JSON

CVE-2017-1000253 KEV EXPLOIT

7.8

HIGH · CVSS 3.1 · EPSS 10.7% (pctl 96)

Patch first

On CISA KEV — known exploited in the wild, due 2024-09-30.

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.

Scoring

CVSS	7.8 (HIGH, v3.1)
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS	10.7% — more likely to be exploited than 96% of all CVEs
Weakness	CWE-119
On CISA KEV	yes — remediate by 2024-09-30
Public exploit	yes
Published	2017-10-05
Last modified	2026-06-17

CISA KEV

Name	Linux Kernel PIE Stack Buffer Corruption Vulnerability
Added	2024-09-09
Due	2024-09-30
Vendor / product	Linux / Kernel
Ransomware use	known

Affected (3)

Vendor	Product
centos	centos
linux	linux kernel
redhat	enterprise linux

Public exploits

Source	Title	Date
exploit-db	Linux Kernel 3.10.0-514.21.2.el7.x86_64 / 3.10.0-514.26.1.el7.x86_64 (CentOS 7) - SUID Position Independent Executable 'PIE' Local Privilege Escalation	2017-09-26

References

→ the Explorer · watch your stack · NVD