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kernel: privilege escalation
| Package(s): | kernel |
CVE #(s): | CVE-2009-1895
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| Created: | July 27, 2009 |
Updated: | March 21, 2011 |
| Description: |
From the CVE entry:
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). |
| Alerts: |
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