Read the docs
TI-2011-02186 Aliases CVE-2011-2494GHSA-78r9-4xww-5cr5

kernel/taskstats.c in the Linux kernel before 3.1 allows local users to obtain sensitive…

Priority LOW 11CWE-200Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Partial · None · None
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.

Summary

kernel/taskstats.c in the Linux kernel before 3.1 allows local users to obtain sensitive I/O statistics by sending taskstats commands to a netlink socket, as demonstrated by discovering the length of another user's password.

Why it matters now

EPSS 0.00354 29th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 34

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 3.0.34VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:*3.0.1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:*3.0.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:*3.0.3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:*3.0.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:*3.0.5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:*3.0.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:*3.0.7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.8:*:*:*:*:*:*:*3.0.8VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.9:*:*:*:*:*:*:*3.0.9VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.0.34 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:* Versions 3.0.1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:* Versions 3.0.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:* Versions 3.0.3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:* Versions 3.0.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:* Versions 3.0.5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:* Versions 3.0.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:* Versions 3.0.7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.8:*:*:*:*:*:*:* Versions 3.0.8 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.9:*:*:*:*:*:*:* Versions 3.0.9 Vulnerable ·Linux
Show 24 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:3.0.10:*:*:*:*:*:*:*3.0.10VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.11:*:*:*:*:*:*:*3.0.11VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.12:*:*:*:*:*:*:*3.0.12VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.13:*:*:*:*:*:*:*3.0.13VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:*3.0.14VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.15:*:*:*:*:*:*:*3.0.15VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.16:*:*:*:*:*:*:*3.0.16VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.17:*:*:*:*:*:*:*3.0.17VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.18:*:*:*:*:*:*:*3.0.18VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.19:*:*:*:*:*:*:*3.0.19VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.20:*:*:*:*:*:*:*3.0.20VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.21:*:*:*:*:*:*:*3.0.21VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.22:*:*:*:*:*:*:*3.0.22VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.23:*:*:*:*:*:*:*3.0.23VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.24:*:*:*:*:*:*:*3.0.24VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*3.0.25VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.26:*:*:*:*:*:*:*3.0.26VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.27:*:*:*:*:*:*:*3.0.27VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.28:*:*:*:*:*:*:*3.0.28VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:*3.0.29VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:*3.0.30VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:*3.0.31VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.32:*:*:*:*:*:*:*3.0.32VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.0.33:*:*:*:*:*:*:*3.0.33VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:3.0.10:*:*:*:*:*:*:* Versions 3.0.10 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.11:*:*:*:*:*:*:* Versions 3.0.11 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.12:*:*:*:*:*:*:* Versions 3.0.12 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.13:*:*:*:*:*:*:* Versions 3.0.13 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:* Versions 3.0.14 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.15:*:*:*:*:*:*:* Versions 3.0.15 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.16:*:*:*:*:*:*:* Versions 3.0.16 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.17:*:*:*:*:*:*:* Versions 3.0.17 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.18:*:*:*:*:*:*:* Versions 3.0.18 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.19:*:*:*:*:*:*:* Versions 3.0.19 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.20:*:*:*:*:*:*:* Versions 3.0.20 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.21:*:*:*:*:*:*:* Versions 3.0.21 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.22:*:*:*:*:*:*:* Versions 3.0.22 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.23:*:*:*:*:*:*:* Versions 3.0.23 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.24:*:*:*:*:*:*:* Versions 3.0.24 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:* Versions 3.0.25 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.26:*:*:*:*:*:*:* Versions 3.0.26 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.27:*:*:*:*:*:*:* Versions 3.0.27 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.28:*:*:*:*:*:*:* Versions 3.0.28 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:* Versions 3.0.29 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:* Versions 3.0.30 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:* Versions 3.0.31 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.32:*:*:*:*:*:*:* Versions 3.0.32 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.0.33:*:*:*:*:*:*:* Versions 3.0.33 Vulnerable ·Linux

Remediation

Red Hat 3 advisories

  • RHSA-2012:0010 Released 2012-01-10 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-2.6.33.9-rt31.79.el6rt, kernel-rt-debug-2.6.33.9-rt31.79.el6rt, kernel-rt-debug-devel-2.6.33.9-rt31.79.el6rt +7
  • RHSA-2011:1479 Released 2011-11-29 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-274.12.1.el5, kernel-2.6.18-274.12.1.el5.ia64, kernel-PAE-2.6.18-274.12.1.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-274.12.1.el5, kernel-PAE-2.6.18-274.12.1.el5, kernel-PAE-devel-2.6.18-274.12.1.el5 +8
  • RHSA-2011:1465 Released 2011-11-22 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.21.1.el6, kernel-bootwrapper-2.6.32-131.21.1.el6, kernel-debug-2.6.32-131.21.1.el6 +8

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2011:1479
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2011:1479
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1465
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2012:0010
Not affected: 1 product
  • Red Hat Enterprise Linux 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-2494
  2. 2026-10-03 Alias added: GHSA-78r9-4xww-5cr5

References

Patch 1

Advisory 1

Other 4

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences