VULNERABILITY INTELLIGENCE
CVE-2007-4573
CVSS score7.2 HIGH
EPSS probability0.82%
CISA KEVNot currently listed
Published2007-09-24
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:C/I:C/A:C
Description
The IA32 system call emulation functionality in Linux kernel 2.4.x and 2.6.x before 2.6.22.7, when running on the x86_64 architecture, does not zero extend the eax register after the 32bit entry path to ptrace is used, which might allow local users to gain privileges by triggering an out-of-bounds access to the system call table using the %RAX register.