Vulnerability in Linux Kernel
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.
EPSS: 0.023 (81.8th percentile) — read the EPSS interpretation.
Affected products
- Linux Linux_kernel — versions 2.6.0, 2.6.1, 2.6.2
- N/a — versions n/a
References
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (vdb-entry, x_refsource_XF)
- cve@mitre.org (x_refsource_OSVDB, vdb-entry)
- cve@mitre.org (vdb-entry, x_refsource_BID)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Exploit, Patch)
- cve@mitre.org (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST)