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Vulnerabilities

Vulnerability · CVE-2017-1000253

Linux Kernel PIE Stack Buffer Corruption Vulnerability

Published Oct 4, 2017 · catalog updated Jun 16, 2026 · Linux Kernel

Patch now

CVE-2017-1000253 is in the CISA known-exploited catalog, due Sep 30, 2024. Confirm Linux Kernel against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
High7.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
10.70%
Remediation
Remediation guidance
Affected products
cpe centos/centos · cpe linux/linux kernel · vendor Linux Kernel

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe centos/centos6.0
  • cpe centos/centos6.1
  • cpe centos/centos6.2
  • cpe centos/centos6.3
  • cpe centos/centos6.4
  • cpe centos/centos6.5
  • cpe centos/centos6.6
  • cpe centos/centos6.7
  • cpe linux/linux kernelversion unspecified
  • vendor Linux Kernelversion unspecified

How to fix CVE-2017-1000253

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2017-1000253 is in the CISA known-exploited catalog, due Sep 30, 2024. Confirm Linux Kernel against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with 6.0, 6.1, 6.2, 6.3, 6.4, 6.5. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-119: Buffer Overflow. EPSS 10.70%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 4, 2017 · Catalog

    Detected

    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_RANDOMIZ

  2. Sep 9, 2024 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  3. Sep 30, 2024 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  4. Jun 16, 2026 · Catalog

    Updated

    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_RANDOMIZ

Sources

  • CISA KEVConfirmed exploitationCVE-2017-1000253

    Linux kernel contains a position-independent executable (PIE) stack buffer corruption vulnerability in load_elf_ binary() that allows a local attacker to escalate privileges.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2017-1000253

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2017-1000253

    30-day exploitation probability 10.7%

    first.org
  • Exploit DatabasePublic exploit reference42887

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDVulnerability recordCVE-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 (backpo

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2017-1000253

    Linux kernel contains a position-independent executable (PIE) stack buffer corruption vulnerability in load_elf_ binary() that allows a local attacker to escalate privileges.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.