vulnwire
7.5high

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 obta…

Published 21 y ago · modified 4 mo ago · JSON

CVSS
7.5
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.3%
percentile 84%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

2.34% probability of exploitation in the next 30 days, higher than 84% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Technology feeds
Linux kernel (RSS, critical only)

References

  • kernel.org /pub/linux/kernel/v2.6/ChangeLog-2.6.6 · x_refsource_CONFIRM, x_transferred
  • exchange.xforce.ibmcloud.com /vulnerabilities/16106 · vdb-entry, x_refsource_XF, x_transferred
  • osvdb.org /5997 · vdb-entry, x_refsource_OSVDB, x_transferred
  • securityfocus.com /bid/10302 · vdb-entry, x_refsource_BID, x_transferred
  • ussg.iu.edu /hypermail/linux/kernel/0405.0/1242.html · mailing-list, x_refsource_MLIST, x_transferred
  • secunia.com /advisories/11577 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • ussg.iu.edu /hypermail/linux/kernel/0405.0/1265.html · mailing-list, x_refsource_MLIST, x_transferred

Sources

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