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Case File

CVE-2009-1895

HIGH · CVSS 7.2 EPSS 0.44%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-07-16 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2009-1895
Severity
HIGH
CVSS
7.2
EPSS
0.44%
Linux

Original NVD Description

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).