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 2004-12-31 05:00:00
Updated 2017-07-11 01:31:59
Source MITRE
View at NVD,   CVE.org

Threat overview for CVE-2004-2536

Top countries where our scanners detected CVE-2004-2536
Top open port discovered on systems with this issue 49153
IPs affected by CVE-2004-2536 11,248
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2004-2536!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2004-2536

Probability of exploitation activity in the next 30 days: 0.71%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 78 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2004-2536

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST

References for CVE-2004-2536

Products affected by CVE-2004-2536

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