Linux · Kernel
CVE-2017-1000253
Linux Kernel PIE Stack Buffer Corruption Vulnerability
Cos'è
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.
Cosa fare
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Scadenza per le agenzie federali USA: 30 settembre 2024
- Aggiunta all'elenco CISA
- 9 settembre 2024
- Pubblicato
- 4 ottobre 2017
- Gravità
- Alta 7,8 CVSS 3.1
- Probabilità di attacchi nei prossimi 30 giorni (EPSS)
- 11% tra il 4,2% più alto di tutte le vulnerabilità note
- Tipo di debolezza
- CWE-119
- Più dettagli
- NVD · CVE.org · CISA
Tutte le fonti (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
Altre falle sfruttate di Linux
| Aggiunto | Vulnerabilità | Prodotto | Gravità | Probabilità di attacco |
|---|---|---|---|---|
| 18 set 2026 | Improper Check for Unusual or Exceptional Conditions | Kernel | Critica 9,8 | 3,3% |
| 18 set 2026 | Race Condition | Kernel | Alta 7,8 | 1,6% |
| 18 set 2026 | Out-of-Bounds Write | Kernel | Alta 8,8 | 0,9% |
| 27 ago 2026 | Unspecified | Kernel | Alta 7,8 | 0,7% |
| 26 ago 2026 | Out-of-Bounds Write | Kernel | Alta 7,8 | 8,9% |
| 2 giu 2026 | Improper Authentication | Kernel | Alta 7,8 | 5,5% |
| 1 mag 2026 | Incorrect Resource Transfer Between Spheres | Kernel | Alta 7,8 | 98% |
| 26 gen 2026 | Integer Overflow | Kernel | Alta 7,8 | 15% |
Fonti: Known Exploited Vulnerabilities (CISA, pubblico dominio), CVE records (cve.org) e EPSS (FIRST). La probabilità di attacco è la stima EPSS che qualcuno provi a sfruttare la falla nei prossimi 30 giorni.