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TI-2011-02188 Aliases CVE-2011-2496GHSA-ccg6-h5cr-mf8v

Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before…

Priority LOW 23CWE-189Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.

Summary

Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG_ON and system crash) via a crafted mremap system call that expands a memory mapping.

Why it matters now

EPSS 0.00487 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 3 advisoriesRed Hat: 4 fixed, 1 without a fix

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 · 17

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 2.6.38.8VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:*:*:*:*:*:*:*2.6.38VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:rc1:*:*:*:*:*:*2.6.38 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:rc2:*:*:*:*:*:*2.6.38 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:rc3:*:*:*:*:*:*2.6.38 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:rc4:*:*:*:*:*:*2.6.38 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:rc5:*:*:*:*:*:*2.6.38 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:rc6:*:*:*:*:*:*2.6.38 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:rc7:*:*:*:*:*:*2.6.38 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38:rc8:*:*:*:*:*:*2.6.38 rc8VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 2.6.38.8 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:*:*:*:*:*:*:* Versions 2.6.38 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:rc1:*:*:*:*:*:* Versions 2.6.38 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:rc2:*:*:*:*:*:* Versions 2.6.38 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:rc3:*:*:*:*:*:* Versions 2.6.38 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:rc4:*:*:*:*:*:* Versions 2.6.38 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:rc5:*:*:*:*:*:* Versions 2.6.38 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:rc6:*:*:*:*:*:* Versions 2.6.38 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:rc7:*:*:*:*:*:* Versions 2.6.38 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38:rc8:*:*:*:*:*:* Versions 2.6.38 rc8 Vulnerable ·Linux
Show 7 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:2.6.38.1:*:*:*:*:*:*:*2.6.38.1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38.2:*:*:*:*:*:*:*2.6.38.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38.3:*:*:*:*:*:*:*2.6.38.3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38.4:*:*:*:*:*:*:*2.6.38.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38.5:*:*:*:*:*:*:*2.6.38.5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38.6:*:*:*:*:*:*:*2.6.38.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.38.7:*:*:*:*:*:*:*2.6.38.7VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:2.6.38.1:*:*:*:*:*:*:* Versions 2.6.38.1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38.2:*:*:*:*:*:*:* Versions 2.6.38.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38.3:*:*:*:*:*:*:* Versions 2.6.38.3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38.4:*:*:*:*:*:*:* Versions 2.6.38.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38.5:*:*:*:*:*:*:* Versions 2.6.38.5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38.6:*:*:*:*:*:*:* Versions 2.6.38.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.38.7:*:*:*:*:*:*:* Versions 2.6.38.7 Vulnerable ·Linux

Remediation

Red Hat 3 advisories

  • RHSA-2011:1386 Released 2011-10-20 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-274.7.1.el5, kernel-2.6.18-274.7.1.el5.ia64, kernel-PAE-2.6.18-274.7.1.el5 +14
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-274.7.1.el5, kernel-PAE-2.6.18-274.7.1.el5, kernel-PAE-devel-2.6.18-274.7.1.el5 +6
  • RHSA-2011:1350 Released 2011-10-05 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.17.1.el6, kernel-bootwrapper-2.6.32-131.17.1.el6, kernel-debug-2.6.32-131.17.1.el6 +8
  • RHSA-2011:1253 Released 2011-09-12 · 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-rt31.75.el6rt, kernel-rt-debug-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-devel-2.6.33.9-rt31.75.el6rt +7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 4AffectedNo fix yet
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2011:1386
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2011:1386
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1350
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2011:1253
Not affected: 2 products
  • Red Hat Enterprise Linux (v. 5 server)
  • Red Hat Enterprise Linux Desktop (v. 5 client)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-2496
  2. 2026-10-03 Alias added: GHSA-ccg6-h5cr-mf8v

References

Exploit 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