Linux · Kernel
CVE-2017-1000253
Linux Kernel PIE Stack Buffer Corruption Vulnerability
O que é
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.
CISA: Linux kernel contains a position-independent executable (PIE) stack buffer corruption vulnerability in load_elf_ binary() that allows a local attacker to escalate privileges.
O que fazer
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Prazo para as agências federais dos EUA: 30 de setembro de 2024
- Adicionada à lista da CISA
- 9 de setembro de 2024
- Publicada
- 4 de outubro de 2017
- Gravidade
- Alto 7,8 CVSS 3.1
- Chance de ataques nos próximos 30 dias (EPSS)
- 11% entre os 4,2% mais altos de todas as vulnerabilidades conhecidas
- Fraqueza
- CWE-119
- Mais detalhes
- NVD · CVE.org · CISA
Todas as referências (13)
- https://access.redhat.com/errata/RHSA-2017:2798
- https://access.redhat.com/errata/RHSA-2017:2795
- https://access.redhat.com/errata/RHSA-2017:2801
- https://access.redhat.com/errata/RHSA-2017:2796
- https://access.redhat.com/errata/RHSA-2017:2799
- https://access.redhat.com/errata/RHSA-2017:2794
- https://access.redhat.com/errata/RHSA-2017:2793
- https://access.redhat.com/errata/RHSA-2017:2797
- https://access.redhat.com/errata/RHSA-2017:2802
- https://access.redhat.com/errata/RHSA-2017:2800
- http://www.securitytracker.com/id/1039434
- http://www.securityfocus.com/bid/101010
- https://www.qualys.com/2017/09/26/cve-2017-1000253/cve-2017-1000253.txt
Mais falhas exploradas de Linux
| Adicionado | Vulnerabilidade | Produto | Gravidade | Chance de ataque |
|---|---|---|---|---|
| 18 de set. de 2026 | Improper Check for Unusual or Exceptional Conditions | Kernel | Crítica 9,8 | 3,3% |
| 18 de set. de 2026 | Race Condition | Kernel | Alto 7,8 | 1,6% |
| 18 de set. de 2026 | Out-of-Bounds Write | Kernel | Alto 8,8 | 0,9% |
| 27 de ago. de 2026 | Unspecified | Kernel | Alto 7,8 | 0,7% |
| 26 de ago. de 2026 | Out-of-Bounds Write | Kernel | Alto 7,8 | 8,9% |
| 2 de jun. de 2026 | Improper Authentication | Kernel | Alto 7,8 | 5,5% |
| 1 de mai. de 2026 | Incorrect Resource Transfer Between Spheres | Kernel | Alto 7,8 | 98% |
| 26 de jan. de 2026 | Integer Overflow | Kernel | Alto 7,8 | 15% |
Fontes: Known Exploited Vulnerabilities (CISA, domínio público), CVE records (cve.org) e EPSS (FIRST). A chance de ataque é a estimativa EPSS de que alguém tente explorar a falha nos próximos 30 dias.