Vulnerability Monitor

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CVE-2004-2536

The exit_thread function (process.c) in Linux kernel 2.6 through 2.6.5 does not invalidate the per-TSS io_bitmap pointers if a process obtains IO access permissions from the ioperm function but does not drop those permissions when it exits, which allows other processes to access the per-TSS pointers, access restricted memory locations, and possibly gain privileges.

Published

2004-12-31T05:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    NVD-CWE-Other
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel 2.6.0 Yes
Operating System linux linux_kernel 2.6.1 Yes
Operating System linux linux_kernel 2.6.1 Yes
Operating System linux linux_kernel 2.6.1 Yes
Operating System linux linux_kernel 2.6.2 Yes
Operating System linux linux_kernel 2.6.3 Yes
Operating System linux linux_kernel 2.6.4 Yes
Operating System linux linux_kernel 2.6.5 Yes
References