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TI-2013-02493 Aliases CVE-2013-2851GHSA-m8m5-89h4-8cjh

Format string vulnerability in the register_disk function in block/genhd.c in the Linux…

Priority LOW 27CWE-134Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-134 and the CVSS impact.

Summary

Format string vulnerability in the register_disk function in block/genhd.c in the Linux kernel through 3.9.4 allows local users to gain privileges by leveraging root access and writing format string specifiers to /sys/module/md_mod/parameters/new_array in order to create a crafted /dev/md device name.

Why it matters now

EPSS 0.0034 27th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 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 · 12

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 3.9.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9:rc1:*:*:*:*:*:*3.9 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9:rc2:*:*:*:*:*:*3.9 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:*3.9 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9:rc4:*:*:*:*:*:*3.9 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9:rc5:*:*:*:*:*:*3.9 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9:rc6:*:*:*:*:*:*3.9 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9:rc7:*:*:*:*:*:*3.9 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9.0:*:*:*:*:*:*:*3.9.0VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9.1:*:*:*:*:*:*:*3.9.1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.9.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9:rc1:*:*:*:*:*:* Versions 3.9 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9:rc2:*:*:*:*:*:* Versions 3.9 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:* Versions 3.9 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9:rc4:*:*:*:*:*:* Versions 3.9 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9:rc5:*:*:*:*:*:* Versions 3.9 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9:rc6:*:*:*:*:*:* Versions 3.9 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9:rc7:*:*:*:*:*:* Versions 3.9 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9.0:*:*:*:*:*:*:* Versions 3.9.0 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9.1:*:*:*:*:*:*:* Versions 3.9.1 Vulnerable ·Linux
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:3.9.2:*:*:*:*:*:*:*3.9.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.9.3:*:*:*:*:*:*:*3.9.3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:3.9.2:*:*:*:*:*:*:* Versions 3.9.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.9.3:*:*:*:*:*:*:* Versions 3.9.3 Vulnerable ·Linux

Remediation

Red Hat 4 advisories

  • RHSA-2014:0284 Released 2014-03-11 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4) kernel-2.6.32-358.37.1.el6, python-perf-2.6.32-358.37.1.el6
    • Red Hat Enterprise Linux HPC Node EUS (v. 6.4) kernel-2.6.32-358.37.1.el6, kernel-debug-2.6.32-358.37.1.el6, kernel-debug-devel-2.6.32-358.37.1.el6 +4
    • Red Hat Enterprise Linux Server EUS (v. 6.4) kernel-2.6.32-358.37.1.el6, kernel-bootwrapper-2.6.32-358.37.1.el6, kernel-debug-2.6.32-358.37.1.el6 +7
    • Red Hat Enterprise Linux Server Optional EUS (v. 6.4) kernel-2.6.32-358.37.1.el6, python-perf-2.6.32-358.37.1.el6
  • RHSA-2013:1783 Released 2013-12-05 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Compute Node EUS (v. 6.3) kernel-2.6.32-279.39.1.el6, kernel-debug-2.6.32-279.39.1.el6, kernel-debug-devel-2.6.32-279.39.1.el6 +5
    • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.3) kernel-2.6.32-279.39.1.el6, python-perf-2.6.32-279.39.1.el6
    • Red Hat Enterprise Linux Server EUS (v. 6.3) kernel-2.6.32-279.39.1.el6, kernel-bootwrapper-2.6.32-279.39.1.el6, kernel-debug-2.6.32-279.39.1.el6 +8
    • Red Hat Enterprise Linux Server Optional EUS (v. 6.3) kernel-2.6.32-279.39.1.el6, python-perf-2.6.32-279.39.1.el6
  • RHSA-2013:1645 Released 2013-11-20 · Red Hat rating Important
    Red Hat Enterprise Linux 6 kernel update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-431.el6, kernel-abi-whitelists-2.6.32-431.el6, kernel-debug-2.6.32-431.el6 +6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-431.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-431.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-431.el6, kernel-abi-whitelists-2.6.32-431.el6, kernel-bootwrapper-2.6.32-431.el6 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-431.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-431.el6, kernel-abi-whitelists-2.6.32-431.el6, kernel-debug-2.6.32-431.el6 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-431.el6
Show 1 more Red Hat advisories
  • RHSA-2013:1264 Released 2013-09-16 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.6.11.5-rt37.55.el6rt, kernel-rt-debug-3.6.11.5-rt37.55.el6rt, kernel-rt-debug-devel-3.6.11.5-rt37.55.el6rt +8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Compute Node EUS (v. 6.3)Fixed RHSA-2013:1783
Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.3)Fixed RHSA-2013:1783
Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4)Fixed RHSA-2014:0284
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2013:1645
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2013:1645
Red Hat Enterprise Linux HPC Node EUS (v. 6.4)Fixed RHSA-2014:0284
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2013:1645
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2013:1645
Red Hat Enterprise Linux Server EUS (v. 6.3)Fixed RHSA-2013:1783
Red Hat Enterprise Linux Server EUS (v. 6.4)Fixed RHSA-2014:0284
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2013:1645
Red Hat Enterprise Linux Server Optional EUS (v. 6.3)Fixed RHSA-2013:1783
Red Hat Enterprise Linux Server Optional EUS (v. 6.4)Fixed RHSA-2014:0284
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2013:1645
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2013:1645
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2013:1264
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.4)
  • Red Hat Enterprise Linux Server EUS (v. 6.4)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2013-2851
  2. 2026-10-03 Alias added: GHSA-m8m5-89h4-8cjh
  3. 2026-11-06 Affected versions changed · Red Hat

References

Advisory 11

Other 3

  • 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