← לוח פגיעויות

CVE-2017-1000253

גבוהה 7.8 מנוצלת בשטח (KEV) בשימוש בכופרה

ניצול פעיל מאומת — קטלוג CISA KEV

שם
Linux Kernel PIE Stack Buffer Corruption Vulnerability
נוסף לקטלוג
יעד טיפול (פדרלי)
פעולה נדרשת
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1
7.8 (HIGH) מקור הציון: NVD CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — סבירות ניצול
11% (אחוזון 100) נכון ל-25/7/2026
CWE
CWE-119

מוצרים מושפעים

centos: centos; redhat: enterprise linux; linux: linux kernel

קישורים